首页 > 最新文献

Food and Waterborne Parasitology最新文献

英文 中文
Infection rates of Fasciola spp. in cattle slaughtered at 13 abattoirs in six of nine provinces of South Africa 在南非九个省中的六个省的13个屠宰场屠宰的牛中片形吸虫的感染率
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-06-01 Epub Date: 2025-03-29 DOI: 10.1016/j.fawpar.2025.e00260
Sophy Nukeri , Mokgadi Pulane Malatji , Msawenkosi I. Sithole , Philile I. Ngcamphalala , Ignore Nyagura , Danisile Tembe , Innocent Siyanda Ndlovu , Mamohale Chaisi , Samson Mukaratirwa
Fasciolosis or liver fluke infection is a snail-borne disease that affects the productivity of domestic ruminants including liver condemnation especially in cattle. However, there is paucity of information on the burden of infection due to lack of accurate data on liver condemnation related to correct geographical origin of infected animals. This distorts perception of the geographical occurrence of fasciolosis, particularly in South Africa among other countries. We aimed to determine the infection rates of Fasciola spp. in cattle slaughtered at selected abattoirs in South Africa. A total of 13 abattoirs consisting of 10 high throughput and three low throughput abattoirs across six provinces, were visited to screen for liver fluke infection in slaughtered cattle including tracing of the animals' geographical origin. A total of 57 livers from 673 slaughtered cattle (8.5 %) from 10 abattoirs were infected with Fasciola spp.. The highest infection rate from the study sites was 37 % and the lowest 4.5 %. Tracing of infected cattle showed that some abattoirs slaughtered cattle originating from other provinces. Forty-nine percent (29/57) of infected cattle had moderate body condition score (BCS) and recorded the highest intensity of fluke infection (>100 flukes per liver). Furthermore, young animals had high infection rates (51 %; 29/57) compared to adults (49 %; 28/57) and females (54 %; 31/57) compared to males (46 %; 26/57). The overall results highlighted the presence of Fasciola spp. in five provinces of South Africa, represented by more than four agro-ecological zones. Fasciola hepatica occurred in all six provinces while both Fasciola spp. co-occurred in one province. Furthermore, F. hepatica constituted the highest percentage (74 %; 710/960) of Fasciola spp. specimens collected. Fasciola gigantica were collected from abattoirs in one province and constituted 26 % (250/960) of the total collected flukes. Results from the study provide information on the burden of fasciolosis in cattle. This is based on abattoir surveys in South Africa, considering the traced geographical origin of animals slaughtered. Using data from surveys of this nature might support efforts to map the geographical distribution of fasciolosis in South Africa. Thus, contribute towards the development of effective control and treatment programs of fasciolosis to mitigate the burden of the disease in cattle.
片形虫病或肝吸虫感染是一种蜗牛传播的疾病,影响家畜反刍动物的生产力,包括肝脏谴责,特别是牛。然而,由于缺乏与受感染动物的正确地理来源有关的肝脏谴责的准确数据,因此缺乏关于感染负担的信息。这扭曲了对片形吸虫病地理分布的认识,特别是在南非和其他国家。我们的目的是确定在南非选定的屠宰场屠宰的牛中片形吸虫的感染率。共访问了13个屠宰场,包括6个省的10个高产量屠宰场和3个低产量屠宰场,以筛查屠宰牛的肝吸虫感染,包括追踪动物的地理来源。10个屠宰场673头屠宰牛的57只肝脏(8.5%)感染片形吸虫。研究地点的感染率最高为37%,最低为4.5%。对受感染牛的追踪显示,一些屠宰场屠宰了来自其他省份的牛。49%(29/57)的感染牛体况评分(BCS)为中等,吸虫感染强度最高(每肝吸虫100只)。此外,幼龄动物的感染率很高(51%;29/57),而成年人(49%;28/57)和女性(54%;31/57),而男性(46%;26/57)。总体结果表明,片形吸虫在南非5个省(以4个以上的农业生态区为代表)存在。肝片吸虫病在6个省均有发生,2种片吸虫病在1个省同时发生。此外,肝单胞菌的比例最高(74%);(710/960)采集片形吸虫标本。在一个省的屠宰场采集到巨型片吸虫,占采集到吸虫总数的26%(250/960)。研究结果提供了有关牛片形吸虫病负担的信息。这是基于对南非屠宰场的调查,考虑到被屠宰动物的地理来源。利用这种性质的调查数据可能有助于绘制南非片形虫病的地理分布图。因此,有助于制定有效的片形虫病控制和治疗方案,以减轻牛的疾病负担。
{"title":"Infection rates of Fasciola spp. in cattle slaughtered at 13 abattoirs in six of nine provinces of South Africa","authors":"Sophy Nukeri ,&nbsp;Mokgadi Pulane Malatji ,&nbsp;Msawenkosi I. Sithole ,&nbsp;Philile I. Ngcamphalala ,&nbsp;Ignore Nyagura ,&nbsp;Danisile Tembe ,&nbsp;Innocent Siyanda Ndlovu ,&nbsp;Mamohale Chaisi ,&nbsp;Samson Mukaratirwa","doi":"10.1016/j.fawpar.2025.e00260","DOIUrl":"10.1016/j.fawpar.2025.e00260","url":null,"abstract":"<div><div>Fasciolosis or liver fluke infection is a snail-borne disease that affects the productivity of domestic ruminants including liver condemnation especially in cattle. However, there is paucity of information on the burden of infection due to lack of accurate data on liver condemnation related to correct geographical origin of infected animals. This distorts perception of the geographical occurrence of fasciolosis, particularly in South Africa among other countries. We aimed to determine the infection rates of <em>Fasciola</em> spp. in cattle slaughtered at selected abattoirs in South Africa. A total of 13 abattoirs consisting of 10 high throughput and three low throughput abattoirs across six provinces, were visited to screen for liver fluke infection in slaughtered cattle including tracing of the animals' geographical origin. A total of 57 livers from 673 slaughtered cattle (8.5 %) from 10 abattoirs were infected with <em>Fasciola</em> spp.. The highest infection rate from the study sites was 37 % and the lowest 4.5 %. Tracing of infected cattle showed that some abattoirs slaughtered cattle originating from other provinces. Forty-nine percent (29/57) of infected cattle had moderate body condition score (BCS) and recorded the highest intensity of fluke infection (&gt;100 flukes per liver). Furthermore, young animals had high infection rates (51 %; 29/57) compared to adults (49 %; 28/57) and females (54 %; 31/57) compared to males (46 %; 26/57). The overall results highlighted the presence of <em>Fasciola</em> spp. in five provinces of South Africa, represented by more than four agro-ecological zones. <em>Fasciola hepatica</em> occurred in all six provinces while both <em>Fasciola</em> spp. co-occurred in one province. Furthermore, <em>F. hepatica</em> constituted the highest percentage (74 %; 710/960) of <em>Fasciola</em> spp. specimens collected. <em>Fasciola gigantica</em> were collected from abattoirs in one province and constituted 26 % (250/960) of the total collected flukes. Results from the study provide information on the burden of fasciolosis in cattle. This is based on abattoir surveys in South Africa, considering the traced geographical origin of animals slaughtered. Using data from surveys of this nature might support efforts to map the geographical distribution of fasciolosis in South Africa. Thus, contribute towards the development of effective control and treatment programs of fasciolosis to mitigate the burden of the disease in cattle.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"39 ","pages":"Article e00260"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ten-year experience with pediatric splenic Hydatidosis: Clinical profiles, surgical outcomes, and prognostic indicators 小儿脾包虫病的十年经验:临床概况、手术结果和预后指标
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-06-01 Epub Date: 2025-04-22 DOI: 10.1016/j.fawpar.2025.e00266
M. Forooghi , H. Hosseini , Sh. Yousufzai , D. Ebrahimi , R. Shahrokhi , A. Ebrahimi , R. Abdollahzade , S. Hooshmandi , M.G. Gahromi , S. Sharifi , Z. Sharifi , A. Tadayon
Hydatidosis, caused by Echinococcus granulosus, poses significant public health challenges, particularly in endemic regions. While hepatic and pulmonary involvement are common, splenic hydatidosis in pediatric populations is rare and frequently underreported. In this retrospective observational study, we present a decade-long single-center experience (2014–2024) in pediatric splenic hydatidosis, detailing demographic profiles, clinical presentations, imaging characteristics, and surgical outcomes. Ten patients (mean age: 11.3 years) were evaluated, with abdominal pain as the predominant symptom and cyst sizes ranging from 40 to 220 mm (WHO-IWGE classification: 1CE–CE3b). Total splenectomy was performed in nine cases, with one patient undergoing partial splenectomy. Preoperative albendazole was administered to eight patients, and postoperative albendazole to nine patients; long-term therapy (2–8 months) was provided in seven cases. Prophylactic measures, including pneumococcal vaccination and postoperative antibiotic prophylaxis, were implemented, resulting in no cases of overwhelming post-splenectomy infection or hydatid recurrence during a mean follow-up of approximately four years. These findings underscore the importance of early diagnosis, appropriate surgical intervention, and diligent long-term follow-up, as well as the need for strengthened public health initiatives to reduce the disease burden in endemic regions.
由细粒棘球绦虫引起的包虫病对公共卫生构成重大挑战,特别是在流行地区。虽然肝脏和肺部的累及是常见的,脾包虫病在儿科人群是罕见的,经常被低估。在这项回顾性观察性研究中,我们对儿童脾包虫病进行了长达十年的单中心研究(2014-2024),详细介绍了人口统计学特征、临床表现、影像学特征和手术结果。10例患者(平均年龄:11.3岁)以腹痛为主要症状,囊肿大小从40到220毫米不等(who - ige分类:1CE-CE3b)。9例患者行全脾切除术,1例行部分脾切除术。术前给予阿苯达唑8例,术后给予阿苯达唑9例;长期治疗(2-8个月)7例。预防措施,包括肺炎球菌疫苗接种和术后抗生素预防,在平均约4年的随访期间,没有出现脾切除术后压倒性感染或包虫病复发的病例。这些发现强调了早期诊断、适当的手术干预和勤奋的长期随访的重要性,以及加强公共卫生行动以减轻流行地区疾病负担的必要性。
{"title":"Ten-year experience with pediatric splenic Hydatidosis: Clinical profiles, surgical outcomes, and prognostic indicators","authors":"M. Forooghi ,&nbsp;H. Hosseini ,&nbsp;Sh. Yousufzai ,&nbsp;D. Ebrahimi ,&nbsp;R. Shahrokhi ,&nbsp;A. Ebrahimi ,&nbsp;R. Abdollahzade ,&nbsp;S. Hooshmandi ,&nbsp;M.G. Gahromi ,&nbsp;S. Sharifi ,&nbsp;Z. Sharifi ,&nbsp;A. Tadayon","doi":"10.1016/j.fawpar.2025.e00266","DOIUrl":"10.1016/j.fawpar.2025.e00266","url":null,"abstract":"<div><div>Hydatidosis, caused by <em>Echinococcus granulosus</em>, poses significant public health challenges, particularly in endemic regions. While hepatic and pulmonary involvement are common, splenic hydatidosis in pediatric populations is rare and frequently underreported. In this retrospective observational study, we present a decade-long single-center experience (2014–2024) in pediatric splenic hydatidosis, detailing demographic profiles, clinical presentations, imaging characteristics, and surgical outcomes. Ten patients (mean age: 11.3 years) were evaluated, with abdominal pain as the predominant symptom and cyst sizes ranging from 40 to 220 mm (WHO-IWGE classification: 1CE–CE3b). Total splenectomy was performed in nine cases, with one patient undergoing partial splenectomy. Preoperative albendazole was administered to eight patients, and postoperative albendazole to nine patients; long-term therapy (2–8 months) was provided in seven cases. Prophylactic measures, including pneumococcal vaccination and postoperative antibiotic prophylaxis, were implemented, resulting in no cases of overwhelming post-splenectomy infection or hydatid recurrence during a mean follow-up of approximately four years. These findings underscore the importance of early diagnosis, appropriate surgical intervention, and diligent long-term follow-up, as well as the need for strengthened public health initiatives to reduce the disease burden in endemic regions.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"39 ","pages":"Article e00266"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Autochthonous human case of Echinococcus ortleppi cystic echinococcosis in Brittany, Western part of France 法国西部布列塔尼本地人类奥特皮棘球蚴囊性棘球蚴病一例
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-06-01 Epub Date: 2025-04-17 DOI: 10.1016/j.fawpar.2025.e00264
Brice Autier , Marion Baldeyrou , Heithem Jeddou , Coralie Barrera , Jean-Pierre Gangneux
Human cystic echinococcosis (CE) is a worldwide infection due to the larval stage of Echinococcus granulosus sensu lato, a taeniid tapeworm of canids. Identification of the causative agent at species level relies on molecular methods such as DNA sequencing or species-specific qPCR, which are rarely used for routine case management. Among the different species within the E. granulosus complex, Echinococcus ortleppi (E. granulosus genotype G5 former “cattle strain”) has been reported in only 19 human cases worldwide, including 3 in France. We report the 20th case of E. ortleppi cystic echinococcosis, which is an French autochthonous case of a patient without usual risk factors for CE, and living in an area not known to be endemic for E. ortleppi. This case highlights that medical community should be aware of the benefits from molecular epidemiology in understanding the landscape of parasitic diseases.
人类囊性棘球蚴病(CE)是一种由犬科动物的绦虫——细粒棘球绦虫幼虫引起的世界性传染病。在物种水平上鉴定病原体依赖于分子方法,如DNA测序或物种特异性qPCR,这些方法很少用于常规病例管理。在颗粒棘球绦虫复合体的不同种类中,全球仅在19例人类病例中报告了棘球绦虫(颗粒棘球绦虫基因型G5以前的“牛株”),其中包括法国的3例。我们报告第20例奥特皮囊性棘球蚴病,这是一个法国本土病例,患者没有常见的CE危险因素,生活在一个未知的奥特皮棘球蚴流行地区。这个病例强调了医学界应该意识到分子流行病学在了解寄生虫病的情况方面的好处。
{"title":"Autochthonous human case of Echinococcus ortleppi cystic echinococcosis in Brittany, Western part of France","authors":"Brice Autier ,&nbsp;Marion Baldeyrou ,&nbsp;Heithem Jeddou ,&nbsp;Coralie Barrera ,&nbsp;Jean-Pierre Gangneux","doi":"10.1016/j.fawpar.2025.e00264","DOIUrl":"10.1016/j.fawpar.2025.e00264","url":null,"abstract":"<div><div>Human cystic echinococcosis (CE) is a worldwide infection due to the larval stage of <em>Echinococcus granulosus sensu lato</em>, a taeniid tapeworm of canids. Identification of the causative agent at species level relies on molecular methods such as DNA sequencing or species-specific qPCR, which are rarely used for routine case management. Among the different species within the <em>E. granulosus</em> complex, <em>Echinococcus ortleppi</em> (<em>E. granulosus</em> genotype G5 former “cattle strain”) has been reported in only 19 human cases worldwide, including 3 in France. We report the 20th case of <em>E. ortleppi</em> cystic echinococcosis, which is an French autochthonous case of a patient without usual risk factors for CE, and living in an area not known to be endemic for <em>E. ortleppi</em>. This case highlights that medical community should be aware of the benefits from molecular epidemiology in understanding the landscape of parasitic diseases.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"39 ","pages":"Article e00264"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial Board Page 编委会页面
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-03-01 Epub Date: 2025-03-09 DOI: 10.1016/S2405-6766(25)00003-4
{"title":"Editorial Board Page","authors":"","doi":"10.1016/S2405-6766(25)00003-4","DOIUrl":"10.1016/S2405-6766(25)00003-4","url":null,"abstract":"","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"38 ","pages":"Article e00256"},"PeriodicalIF":2.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Edible plants as significant sources of Blastocystis spp. infections: A systematic review and meta-analysis 食用植物是囊虫感染的重要来源:系统综述和荟萃分析
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-03-01 Epub Date: 2025-03-02 DOI: 10.1016/j.fawpar.2025.e00254
Abdollah Didban , Farajolah Maleki , Laya Shamsi , Ali Asghari , Behzad Bijani , Amin Karampour
This systematic review and meta-analysis were conducted to comprehensively overview the global epidemiology and subtypes (STs) distribution of Blastocystis spp. in edible plants. A comprehensive search of various electronic databases (PubMed, Scopus, Google Scholar, and Web of Science) until May 19, 2024, found 27 studies/41 datasets meeting inclusion criteria, covering 8794 edible plants from 15 countries globally. Examined edible plants were composed of fruits (six datasets, 1198 samples), non-leafy green vegetables (10 datasets, 1158 samples), leafy green vegetables (18 datasets, 4245 samples), and uncategorized plants (seven datasets, 2193). This study revealed that 9.4 % (95 % CI: 6.6–13.4 %) of global edible plants harbored Blastocystis spp. Fruits had the highest Blastocystis spp. contamination rate among edible plants at 12.5 % (95 % CI: 5.4–26.6 %), followed by uncategorized plants at 10.2 % (95 % CI: 4.5–21.5 %), leafy green vegetables at 9.3 % (95 % CI: 6.1–13.9 %), and non-leafy green vegetables at 5.6 % (95 % CI: 2.5–12.1 %). Sensitivity analysis evaluated weighted prevalence changes after excluding specific studies. Subgroup analysis was conducted considering publication years, countries, continents, WHO regions, sample sizes, and diagnostic methods. Interestingly, zoonotic STs (ST1 and ST3) of Blastocystis spp. have been found in edible plants. These results highlight the potential risk of Blastocystis spp. transmission through consuming contaminated edible plants, emphasizing the importance of implementing adequate food safety measures to decrease the prevalence of this parasite in the food chain.
本文通过系统综述和荟萃分析,全面综述了可食植物中囊虫属(Blastocystis spp.)的全球流行病学及其亚型分布。截止2024年5月19日,通过对PubMed、Scopus、b谷歌Scholar和Web of Science等多个电子数据库的全面检索,发现27篇研究/41个数据集符合纳入标准,涵盖全球15个国家的8794种可食用植物。研究的可食用植物由水果(6个数据集,1198个样本)、非绿叶蔬菜(10个数据集,1158个样本)、绿叶蔬菜(18个数据集,4245个样本)和未分类植物(7个数据集,2193个样本)组成。该研究表明,9.4% (95% CI: 6.6 - 13.4%)的全球可食用植物中含有囊虫,水果在可食用植物中囊虫污染率最高,为12.5% (95% CI: 5.4 - 26.6%),其次是未分类植物,为10.2% (95% CI: 4.5 - 21.5%),绿叶蔬菜为9.3% (95% CI: 6.1 - 13.9%),非绿叶蔬菜为5.6% (95% CI: 2.5 - 12.1%)。敏感性分析评估排除特定研究后的加权患病率变化。根据出版年份、国家、大洲、世卫组织区域、样本量和诊断方法进行亚组分析。有趣的是,在可食用植物中发现了囊虫属的人畜共患STs (ST1和ST3)。这些结果强调了囊虫通过食用受污染的可食用植物传播的潜在风险,强调了实施适当的食品安全措施以减少该寄生虫在食物链中的流行的重要性。
{"title":"Edible plants as significant sources of Blastocystis spp. infections: A systematic review and meta-analysis","authors":"Abdollah Didban ,&nbsp;Farajolah Maleki ,&nbsp;Laya Shamsi ,&nbsp;Ali Asghari ,&nbsp;Behzad Bijani ,&nbsp;Amin Karampour","doi":"10.1016/j.fawpar.2025.e00254","DOIUrl":"10.1016/j.fawpar.2025.e00254","url":null,"abstract":"<div><div>This systematic review and meta-analysis were conducted to comprehensively overview the global epidemiology and subtypes (STs) distribution of <em>Blastocystis</em> spp. in edible plants. A comprehensive search of various electronic databases (PubMed, Scopus, Google Scholar, and Web of Science) until May 19, 2024, found 27 studies/41 datasets meeting inclusion criteria, covering 8794 edible plants from 15 countries globally. Examined edible plants were composed of fruits (six datasets, 1198 samples), non-leafy green vegetables (10 datasets, 1158 samples), leafy green vegetables (18 datasets, 4245 samples), and uncategorized plants (seven datasets, 2193). This study revealed that 9.4 % (95 % CI: 6.6–13.4 %) of global edible plants harbored <em>Blastocystis</em> spp. Fruits had the highest <em>Blastocystis</em> spp. contamination rate among edible plants at 12.5 % (95 % CI: 5.4–26.6 %), followed by uncategorized plants at 10.2 % (95 % CI: 4.5–21.5 %), leafy green vegetables at 9.3 % (95 % CI: 6.1–13.9 %), and non-leafy green vegetables at 5.6 % (95 % CI: 2.5–12.1 %). Sensitivity analysis evaluated weighted prevalence changes after excluding specific studies. Subgroup analysis was conducted considering publication years, countries, continents, WHO regions, sample sizes, and diagnostic methods. Interestingly, zoonotic STs (ST1 and ST3) of <em>Blastocystis</em> spp. have been found in edible plants. These results highlight the potential risk of <em>Blastocystis</em> spp. transmission through consuming contaminated edible plants, emphasizing the importance of implementing adequate food safety measures to decrease the prevalence of this parasite in the food chain.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"38 ","pages":"Article e00254"},"PeriodicalIF":2.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First report of T. spiralis in a wolf in Italy: An increasing health concern? 意大利首次报告狼体内发现螺旋形螺旋体:日益严重的健康问题?
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-03-01 Epub Date: 2024-12-26 DOI: 10.1016/j.fawpar.2024.e00253
G. Marucci , C. Raso , E. Borgogni , F. Celani , I. Tartarelli , S. Cherchi , A. Di Giambattista , P. Calderini , A. Casulli
Trichinella spiralis is a zoonotic nematode parasite of worldwide distribution. It is present in Europe with important foci, particularly in Eastern countries and Spain. This species is generally associated with a domestic cycle that involves primarily pigs. It is best adapted for pigs but can also infect a wide range of other domestic, synanthropic, and wild mammals including carnivores, omnivores and scavengers. Before 2016, when T. spiralis larvae were detected in a red fox (Vulpes vulpes) in the Piacenza province (Emilia Romagna region, Northern Italy), this parasite had only been reported in Italy occasionally, being found in horses or pork products imported from Eastern Europe. We describe here the first isolation of T. spiralis in a wolf (Canis lupus) in the Lazio region, Central Italy. In the wolf specimen T. spiralis was identified in coinfection with Trichinella britovi, a species endemic in Italian wildlife. Among the Trichinella species, T. spiralis is the most frequently associated with human disease in Europe and is known to cause more severe symptoms than T. britovi. In light of wolf population expansion, the detection of T. spiralis in Central Italy implies new scenarios for the risk of human trichinellosis because of the high risk this species represents for domestic and wild pigs. Active monitoring of wildlife living in these areas is necessary to define the actual distribution of  this species and to detect its possible presence in other areas of the Italian peninsula.
旋毛虫是一种分布于世界各地的人畜共患线虫寄生虫。它目前在欧洲有重要的焦点,特别是在东方国家和西班牙。这一物种通常与主要涉及猪的家庭循环有关。它最适合猪,但也可以感染广泛的其他家养、共生和野生哺乳动物,包括食肉动物、杂食动物和食腐动物。2016年之前,在皮亚琴察省(意大利北部艾米利亚罗马涅大区)的一只红狐(Vulpes Vulpes)体内检测到螺旋体绦虫幼虫时,这种寄生虫仅在意大利偶尔报告,在从东欧进口的马或猪肉产品中发现。我们在这里描述了第一次分离螺旋体在狼(狼犬)在拉齐奥地区,意大利中部。在狼标本中,鉴定出螺旋体与意大利野生动物特有种布氏旋毛虫共感染。在旋毛虫种类中,螺旋体是欧洲最常与人类疾病相关的,已知比布氏弓形虫引起更严重的症状。鉴于狼种群的扩大,在意大利中部发现螺旋形螺旋体意味着人类旋毛虫病风险的新情况,因为该物种对家猪和野猪具有高风险。有必要对生活在这些地区的野生动物进行积极监测,以确定该物种的实际分布,并发现其在意大利半岛其他地区的可能存在。
{"title":"First report of T. spiralis in a wolf in Italy: An increasing health concern?","authors":"G. Marucci ,&nbsp;C. Raso ,&nbsp;E. Borgogni ,&nbsp;F. Celani ,&nbsp;I. Tartarelli ,&nbsp;S. Cherchi ,&nbsp;A. Di Giambattista ,&nbsp;P. Calderini ,&nbsp;A. Casulli","doi":"10.1016/j.fawpar.2024.e00253","DOIUrl":"10.1016/j.fawpar.2024.e00253","url":null,"abstract":"<div><div><em>Trichinella spiralis</em> is a zoonotic nematode parasite of worldwide distribution. It is present in Europe with important foci, particularly in Eastern countries and Spain. This species is generally associated with a domestic cycle that involves primarily pigs. It is best adapted for pigs but can also infect a wide range of other domestic, synanthropic, and wild mammals including carnivores, omnivores and scavengers. Before 2016, when <em>T. spiralis</em> larvae were detected in a red fox (<em>Vulpes vulpes</em>) in the Piacenza province (Emilia Romagna region, Northern Italy), this parasite had only been reported in Italy occasionally, being found in horses or pork products imported from Eastern Europe. We describe here the first isolation of <em>T. spiralis</em> in a wolf (<em>Canis lupus</em>) in the Lazio region, Central Italy. In the wolf specimen <em>T. spiralis</em> was identified in coinfection with <em>Trichinella britovi</em>, a species endemic in Italian wildlife. Among the <em>Trichinella</em> species, <em>T. spiralis</em> is the most frequently associated with human disease in Europe and is known to cause more severe symptoms than <em>T. britovi</em>. In light of wolf population expansion, the detection of <em>T. spiralis</em> in Central Italy implies new scenarios for the risk of human trichinellosis because of the high risk this species represents for domestic and wild pigs. Active monitoring of wildlife living in these areas is necessary to define the actual distribution of <!--> <!-->this species and to detect its possible presence in other areas of the Italian peninsula.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"38 ","pages":"Article e00253"},"PeriodicalIF":2.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11743876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular characterization and zoonotic risk assessment of Cryptosporidium spp. in Philippine bats 菲律宾蝙蝠隐孢子虫的分子特征及人畜共患风险评估。
IF 2.9 Q2 PARASITOLOGY Pub Date : 2025-03-01 Epub Date: 2024-12-06 DOI: 10.1016/j.fawpar.2024.e00249
Lin Xu , Yasuhiro Fukuda , Fumi Murakoshi , Phillip Alviola , Joseph Masangkay , Frances Cagayat Recuenco , Ayman Shehata , Tsutomu Omatsu , Hironori Bando , Hikaru Fujii , Yumi Une , Kentaro Kato
Cryptosporidium is a genus of parasitic protozoa known to cause diarrheal disease that impacts both humans and animals through infection of various vertebrate species. Bats are recognized as reservoirs for zoonotic pathogens, including Cryptosporidium. The Philippines, renowned for its rich biodiversity, is home to diverse bat species, providing a unique ecological setting to investigate Cryptosporidium infection dynamics. Understanding the prevalence and genetic diversity of Cryptosporidium in Philippine bats is crucial for assessing their potential role in zoonotic disease transmission and associated public health risks.
We investigated the prevalence and genotypic diversity of Cryptosporidium in bats in the Philippines. From January 2019 to March 2024, a total of 569 bats were captured and analyzed, with 14 of the bat samples testing positive for the 18 s rRNA gene of Cryptosporidium, yielding an overall infection rate of 2.46 %. One sample exhibited co-infection, with 18 s rRNA sequence analysis indicating mixed infection with a species closely related to Cryptosporidium parvum (intestinal Cryptosporidium) and Cryptosporidium sp. (gastric Cryptosporidium). Phylogenetic analysis of the 18S rRNA gene revealed that intestinal and gastric Cryptosporidium spp. form two distinct clades. Intestinal Cryptosporidium includes C. parvum, C. hominis, and most bat genotypes, while gastric Cryptosporidium, such as C. andersoni and C. serpentis, is typically found in reptiles and cattle. An unidentified Cryptosporidium species was also detected in one sample, whose sequence matched that of Cryptosporidium previously isolated from a human patient with diarrhea. Nine other samples exhibited genotypes related to C. parvum, indicating a potential for transmission to humans. The remaining three samples exhibited Cryptosporidium bat genotypes II and VI, which have previously been detected in Philippine bats. Our findings underscore the role of bats in the Philippines as potential reservoirs for Cryptosporidium and highlight the diversity of Cryptosporidium species in Philippine bats.
隐孢子虫是一种寄生原生动物属,已知可引起腹泻疾病,通过感染多种脊椎动物影响人类和动物。蝙蝠被认为是包括隐孢子虫在内的人畜共患病病原体的宿主。菲律宾以其丰富的生物多样性而闻名,是多种蝙蝠的家园,为研究隐孢子虫感染动态提供了独特的生态环境。了解菲律宾蝙蝠隐孢子虫的流行和遗传多样性对于评估其在人畜共患疾病传播和相关公共卫生风险中的潜在作用至关重要。我们调查了菲律宾蝙蝠隐孢子虫的流行率和基因型多样性。2019年1月至2024年3月,共捕获并分析了569只蝙蝠,其中14只蝙蝠样本隐孢子虫18s rRNA基因检测呈阳性,总感染率为2.46%。其中1份样品出现共感染,经18 s rRNA序列分析,表明混合感染了一种与小肠隐孢子虫(小肠隐孢子虫)和胃隐孢子虫(胃隐孢子虫)密切相关的物种。对18S rRNA基因的系统发育分析表明,肠道隐孢子虫和胃隐孢子虫形成两个不同的分支。肠道隐孢子虫包括小隐孢子虫、人隐孢子虫和大多数蝙蝠基因型,而胃隐孢子虫,如安德氏隐孢子虫和蛇隐孢子虫,通常在爬行动物和牛身上发现。在一个样本中还检测到一种未确定的隐孢子虫,其序列与先前从人类腹泻患者中分离的隐孢子虫序列相匹配。其他9个样本显示出与小孢子虫相关的基因型,表明有可能传播给人类。其余3份样本显示隐孢子虫蝙蝠基因型II和VI,这两种基因型以前曾在菲律宾蝙蝠中检测到。我们的研究结果强调了菲律宾蝙蝠作为隐孢子虫潜在宿主的作用,并强调了菲律宾蝙蝠隐孢子虫物种的多样性。
{"title":"Molecular characterization and zoonotic risk assessment of Cryptosporidium spp. in Philippine bats","authors":"Lin Xu ,&nbsp;Yasuhiro Fukuda ,&nbsp;Fumi Murakoshi ,&nbsp;Phillip Alviola ,&nbsp;Joseph Masangkay ,&nbsp;Frances Cagayat Recuenco ,&nbsp;Ayman Shehata ,&nbsp;Tsutomu Omatsu ,&nbsp;Hironori Bando ,&nbsp;Hikaru Fujii ,&nbsp;Yumi Une ,&nbsp;Kentaro Kato","doi":"10.1016/j.fawpar.2024.e00249","DOIUrl":"10.1016/j.fawpar.2024.e00249","url":null,"abstract":"<div><div><em>Cryptosporidium</em> is a genus of parasitic protozoa known to cause diarrheal disease that impacts both humans and animals through infection of various vertebrate species. Bats are recognized as reservoirs for zoonotic pathogens, including <em>Cryptosporidium</em>. The Philippines, renowned for its rich biodiversity, is home to diverse bat species, providing a unique ecological setting to investigate <em>Cryptosporidium</em> infection dynamics. Understanding the prevalence and genetic diversity of <em>Cryptosporidium</em> in Philippine bats is crucial for assessing their potential role in zoonotic disease transmission and associated public health risks.</div><div>We investigated the prevalence and genotypic diversity of <em>Cryptosporidium</em> in bats in the Philippines. From January 2019 to March 2024, a total of 569 bats were captured and analyzed, with 14 of the bat samples testing positive for the 18 s rRNA gene of <em>Cryptosporidium</em>, yielding an overall infection rate of 2.46 %. One sample exhibited co-infection, with 18 s rRNA sequence analysis indicating mixed infection with a species closely related to <em>Cryptosporidium parvum</em> (intestinal <em>Cryptosporidium</em>) and <em>Cryptosporidium</em> sp. (gastric <em>Cryptosporidium</em>). Phylogenetic analysis of the 18S rRNA gene revealed that intestinal and gastric <em>Cryptosporidium</em> spp. form two distinct clades. Intestinal <em>Cryptosporidium</em> includes <em>C. parvum</em>, <em>C. hominis</em>, and most bat genotypes, while gastric <em>Cryptosporidium</em>, such as <em>C. andersoni</em> and <em>C. serpentis</em>, is typically found in reptiles and cattle. An unidentified <em>Cryptosporidium</em> species was also detected in one sample, whose sequence matched that of <em>Cryptosporidium</em> previously isolated from a human patient with diarrhea. Nine other samples exhibited genotypes related to <em>C. parvum</em>, indicating a potential for transmission to humans. The remaining three samples exhibited <em>Cryptosporidium</em> bat genotypes II and VI, which have previously been detected in Philippine bats. Our findings underscore the role of bats in the Philippines as potential reservoirs for <em>Cryptosporidium</em> and highlight the diversity of <em>Cryptosporidium</em> species in Philippine bats.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"38 ","pages":"Article e00249"},"PeriodicalIF":2.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718318/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142972515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An immunochromatographic test using whole blood for rapid diagnosis of human paragonimiasis and its diagnostic usefulness 利用全血进行快速诊断人类副银屑病的免疫层析试验及其诊断用途
IF 2.9 Q2 PARASITOLOGY Pub Date : 2024-12-01 Epub Date: 2024-09-23 DOI: 10.1016/j.fawpar.2024.e00246
Patcharaporn Boonroumkaew , Lakkhana Sadaow , Penchom Janwan , Rutchanee Rodpai , Oranuch Sanpool , Tongjit Thanchomnang , Hiroshi Yamasaki , Pewpan M. Intapan , Wanchai Maleewong
Paragonimiasis is a harmful food-borne zoonosis caused by lung flukes of the genus Paragonimus. The disease is found on most continents, several million people are at risk of infection, and it is a re-emerging disease in developing countries. The gold standard for diagnosis of pulmonary paragonimiasis requires the finding of eggs in sputa and/or fecal samples. In ectopic paragonimiasis cases, eggs are typically not seen, and supportive information is required such as a history of eating freshwater crabs or crayfishes, radiographic findings and immunological tests. Here, we developed a proof of concept based on lateral flow assay, an immunochromatographic test kit, named the paragonimiasis whole-blood test kit, for detection of specific IgG antibody in simulated whole-blood samples (WBSs) using worm excretory-secretory antigens to diagnose human paragonimiasis. The laboratory diagnostic values of this kit were compared with the detected IgG in serum samples. In simulated WBSs, the diagnostic sensitivity and specificity were 97.8 % and 96.1 %, respectively, while for serum samples, these values were 100.0 % and 94.8 %, respectively. The comparative IgG antibody detections whether a result was positive or negative between simulated WBSs and serum samples did not differ significantly with a concordance of 97.8 % in laboratory conditions using a circumscribed set of samples. The tool is fast and easy to use. The next step involves observing and evaluating native whole blood samples and using specific recombinant antigens need to be evaluated for support diagnosis of paragonimiasis caused by P. heterotremus, P. westermani and P. miyazakii at the bedside or at local and remote hospitals with limited facilities. It will also be valuable for epidemiological surveys in Asia where paragonimiasis is endemic.
副猪嗜血杆菌病是一种由副猪嗜血杆菌属肺吸虫引起的有害食源性人畜共患病。这种疾病在大多数大陆都有发现,数百万人面临感染风险,而且在发展中国家正在重新流行。诊断肺吸虫病的金标准是在痰和/或粪便样本中发现虫卵。在异位副银屑病病例中,通常看不到虫卵,需要提供辅助信息,如食用淡水蟹或小龙虾的病史、放射学检查结果和免疫学测试。在此,我们开发了一种基于侧流检测的概念验证方法,即一种免疫层析检测试剂盒,命名为副银屑病全血检测试剂盒,利用蠕虫排泄物分泌抗原检测模拟全血样本(WBSs)中的特异性 IgG 抗体,以诊断人类副银屑病。该试剂盒的实验室诊断值与血清样本中检测到的 IgG 进行了比较。在模拟 WBS 中,诊断灵敏度和特异性分别为 97.8 % 和 96.1 %,而在血清样本中,这两个值分别为 100.0 % 和 94.8 %。在实验室条件下,使用一组限定的样本对模拟 WBS 和血清样本的 IgG 抗体检测结果进行比较,无论结果是阳性还是阴性,差异都不大,一致性为 97.8%。该工具使用简单快捷。下一步将对本地全血样本进行观察和评估,并使用特异性重组抗原进行评估,以支持在床边或设施有限的地方和偏远医院诊断由异变形杆菌、西马尼氏菌和宫崎马尼氏菌引起的副猪嗜血杆菌病。这对于在副银屑病流行的亚洲进行流行病学调查也很有价值。
{"title":"An immunochromatographic test using whole blood for rapid diagnosis of human paragonimiasis and its diagnostic usefulness","authors":"Patcharaporn Boonroumkaew ,&nbsp;Lakkhana Sadaow ,&nbsp;Penchom Janwan ,&nbsp;Rutchanee Rodpai ,&nbsp;Oranuch Sanpool ,&nbsp;Tongjit Thanchomnang ,&nbsp;Hiroshi Yamasaki ,&nbsp;Pewpan M. Intapan ,&nbsp;Wanchai Maleewong","doi":"10.1016/j.fawpar.2024.e00246","DOIUrl":"10.1016/j.fawpar.2024.e00246","url":null,"abstract":"<div><div>Paragonimiasis is a harmful food-borne zoonosis caused by lung flukes of the genus <em>Paragonimus</em>. The disease is found on most continents, several million people are at risk of infection, and it is a re-emerging disease in developing countries. The gold standard for diagnosis of pulmonary paragonimiasis requires the finding of eggs in sputa and/or fecal samples. In ectopic paragonimiasis cases, eggs are typically not seen, and supportive information is required such as a history of eating freshwater crabs or crayfishes, radiographic findings and immunological tests. Here, we developed a proof of concept based on lateral flow assay, an immunochromatographic test kit, named the paragonimiasis whole-blood test kit, for detection of specific IgG antibody in simulated whole-blood samples (WBSs) using worm excretory-secretory antigens to diagnose human paragonimiasis. The laboratory diagnostic values of this kit were compared with the detected IgG in serum samples. In simulated WBSs, the diagnostic sensitivity and specificity were 97.8 % and 96.1 %, respectively, while for serum samples, these values were 100.0 % and 94.8 %, respectively. The comparative IgG antibody detections whether a result was positive or negative between simulated WBSs and serum samples did not differ significantly with a concordance of 97.8 % in laboratory conditions using a circumscribed set of samples. The tool is fast and easy to use. The next step involves observing and evaluating native whole blood samples and using specific recombinant antigens need to be evaluated for support diagnosis of paragonimiasis caused by <em>P. heterotremus, P. westermani</em> and <em>P. miyazakii</em> at the bedside or at local and remote hospitals with limited facilities. It will also be valuable for epidemiological surveys in Asia where paragonimiasis is endemic.</div></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"37 ","pages":"Article e00246"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Filters comprised of sand and Zero Valent Iron hold promise as tools to mitigate risk posed by Cyclospora cayetanensis oocysts 由沙子和零价铁组成的过滤器有望成为降低卡耶坦环孢子虫卵囊风险的工具
IF 2.9 Q2 PARASITOLOGY Pub Date : 2024-12-01 Epub Date: 2024-08-31 DOI: 10.1016/j.fawpar.2024.e00243
C. Yeager , M. Tucker , A. Gutierrez , C. O'Brien , M. Sharma , V. Fournet , J.P. Dubey , M. Jenkins , K. Kniel , B.M. Rosenthal

Irrigation water contaminated by human fecal material may elevate the risk of produce contamination with the enteric parasite Cyclospora cayetanensis. Oocysts of C. cayetanensis are resistant to commonly used disinfectants and a method of removing C. cayetanensis from irrigation water would mitigate this risk. We evaluated zero valent iron (ZVI) sand filtration as one such method. We sought to determine if sand filters containing ZVI outperformed those without ZVI. We first evaluated the abundant poultry parasites Eimeria maxima, E. tenella and E. acervulina as surrogates for C. cayetanensis. We determined if a miniaturized gravity fed ZVI-sand filter, scaled to evaluate scarce supplies of C. cayetanensis oocysts, provided useful information about the performance of larger filtration systems. Filters were inoculated with oocysts, rinsed, and the resulting filtrate examined microscopically for oocysts. We performed experiments to measure the effect of varying ZVI concentrations, repeated filter use, simulated agricultural water, and oocyst size and condition. We then compared the performance of mini filters to that of larger, gravity-fed pool filters and found that ZVI-sand filtration was far more effective at removing Eimeria spp. from water when compared to sand filtration, at both scales. Sand mini filters retained 13–54 % of E. acervulina oocysts, and pool filters retained 82 %, but when combined with 50 % (mini filter) or 35 % (pool filter) v/v ZVI, mini filters retained 89–99 % of oocysts and pool filters retained >99 %. The effectiveness of the mini filters increased with increasing ZVI concentration, and the addition of ZVI far outweighed the influence of any other measured variable. We then performed experiments including C. cayetanensis, which provided similar results to those utilizing Eimeria; 59 % of inoculated C. cayetanensis oocysts were retained in sand mini filters, and 97 % in mini filters composed of 35 % v/v ZVI. In sum, ZVI is highly effective in removing oocysts from water and Eimeria is a useful surrogate for C. cayetanensis to assess filtration. ZVI-sand filtration shows promise as a tool to mitigate the risk of C. cayetanensis contamination of irrigation water. Further studies should evaluate the performance of ZVI-sand in pressurized fast filtration systems under a range of field conditions.

被人类粪便污染的灌溉水可能会增加农产品被卡耶坦环孢子虫污染的风险。C. cayetanensis 的卵囊对常用的消毒剂有抗药性,因此从灌溉水中去除 C. cayetanensis 的方法可以降低这种风险。我们评估了零价铁(ZVI)砂滤法。我们试图确定含零价铁的砂滤器是否优于不含零价铁的砂滤器。我们首先评估了大量的家禽寄生虫 Eimeria maxima、E. tenella 和 E. acervulina 作为 C. cayetanensis 的替代品。我们确定了微型重力进给 ZVI 砂过滤器的规模,以评估稀缺的 Cayetanensis 卵囊供应,该过滤器是否能提供有关大型过滤系统性能的有用信息。在过滤器中接种卵囊,然后冲洗,用显微镜检查滤液中的卵囊。我们进行了实验,以测量不同 ZVI 浓度、重复使用过滤器、模拟农业用水以及卵囊大小和状况的影响。然后,我们将微型过滤器的性能与大型重力式水池过滤器的性能进行了比较,结果发现,与砂滤相比,ZVI-砂滤在去除水中艾美耳菌属方面的效果要好得多。小型砂滤器能保留 13% 到 54% 的埃默氏菌卵囊,而水池过滤器能保留 82% 的卵囊,但当与 50% (小型过滤器)或 35% (水池过滤器)v/v ZVI 结合使用时,小型过滤器能保留 89% 到 99% 的卵囊,而水池过滤器能保留 >99% 的卵囊。微型过滤器的效果随着 ZVI 浓度的增加而提高,ZVI 的添加远远超过了任何其他测量变量的影响。然后,我们又进行了卡耶坦氏菌的实验,结果与利用艾美拉菌的实验相似;沙质小型过滤器保留了 59% 的接种卡耶坦氏菌卵囊,而在含有 35% v/v ZVI 的小型过滤器中则保留了 97%。总之,ZVI 能高效去除水中的卵囊,而埃默氏菌是评估卡耶坦金氏虫过滤效果的有效替代物。ZVI 砂滤技术有望成为降低 Cayetanensis 污染灌溉水风险的一种工具。进一步的研究应评估 ZVI 砂在一系列实地条件下加压快速过滤系统中的性能。
{"title":"Filters comprised of sand and Zero Valent Iron hold promise as tools to mitigate risk posed by Cyclospora cayetanensis oocysts","authors":"C. Yeager ,&nbsp;M. Tucker ,&nbsp;A. Gutierrez ,&nbsp;C. O'Brien ,&nbsp;M. Sharma ,&nbsp;V. Fournet ,&nbsp;J.P. Dubey ,&nbsp;M. Jenkins ,&nbsp;K. Kniel ,&nbsp;B.M. Rosenthal","doi":"10.1016/j.fawpar.2024.e00243","DOIUrl":"10.1016/j.fawpar.2024.e00243","url":null,"abstract":"<div><p>Irrigation water contaminated by human fecal material may elevate the risk of produce contamination with the enteric parasite <em>Cyclospora cayetanensis.</em> Oocysts of <em>C. cayetanensis</em> are resistant to commonly used disinfectants and a method of removing <em>C. cayetanensis</em> from irrigation water would mitigate this risk. We evaluated zero valent iron (ZVI) sand filtration as one such method. We sought to determine if sand filters containing ZVI outperformed those without ZVI. We first evaluated the abundant poultry parasites <em>Eimeria maxima</em>, <em>E. tenella</em> and <em>E. acervulina</em> as surrogates for <em>C. cayetanensis</em>. We determined if a miniaturized gravity fed ZVI-sand filter, scaled to evaluate scarce supplies of <em>C. cayetanensis</em> oocysts, provided useful information about the performance of larger filtration systems. Filters were inoculated with oocysts, rinsed, and the resulting filtrate examined microscopically for oocysts. We performed experiments to measure the effect of varying ZVI concentrations, repeated filter use, simulated agricultural water, and oocyst size and condition. We then compared the performance of mini filters to that of larger, gravity-fed pool filters and found that ZVI-sand filtration was far more effective at removing <em>Eimeria</em> spp. from water when compared to sand filtration, at both scales. Sand mini filters retained 13–54 % of <em>E. acervulina</em> oocysts, and pool filters retained 82 %, but when combined with 50 % (mini filter) or 35 % (pool filter) <em>v</em>/v ZVI, mini filters retained 89–99 % of oocysts and pool filters retained &gt;99 %. The effectiveness of the mini filters increased with increasing ZVI concentration, and the addition of ZVI far outweighed the influence of any other measured variable. We then performed experiments including <em>C. cayetanensis</em>, which provided similar results to those utilizing <em>Eimeria</em>; 59 % of inoculated <em>C. cayetanensis</em> oocysts were retained in sand mini filters, and 97 % in mini filters composed of 35 % <em>v</em>/v ZVI. In sum, ZVI is highly effective in removing oocysts from water and <em>Eimeria</em> is a useful surrogate for <em>C. cayetanensis</em> to assess filtration. ZVI-sand filtration shows promise as a tool to mitigate the risk of <em>C. cayetanensis</em> contamination of irrigation water. Further studies should evaluate the performance of ZVI-sand in pressurized fast filtration systems under a range of field conditions.</p></div>","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"37 ","pages":"Article e00243"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405676624000258/pdfft?md5=bbf171f834dbc70de72425db565754f5&pid=1-s2.0-S2405676624000258-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial Board Page 编委会页面
IF 2.9 Q2 PARASITOLOGY Pub Date : 2024-12-01 Epub Date: 2024-12-12 DOI: 10.1016/S2405-6766(24)00032-5
{"title":"Editorial Board Page","authors":"","doi":"10.1016/S2405-6766(24)00032-5","DOIUrl":"10.1016/S2405-6766(24)00032-5","url":null,"abstract":"","PeriodicalId":37941,"journal":{"name":"Food and Waterborne Parasitology","volume":"37 ","pages":"Article e00250"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Food and Waterborne Parasitology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1