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Economic burden of malaria on developing countries: A mini review 疟疾对发展中国家的经济负担:小型审查
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-05-29 DOI: 10.1016/j.parepi.2025.e00435
Kelechi Chinemerem Mezieobi , Esther Ugo Alum , Okechukwu Paul-Chima Ugwu , Daniel Ejim Uti , Benedict Nnachi Alum , Simeon Ikechukwu Egba , Clinton Michael Ewah
Malaria remains a major public health challenge in developing nations, particularly in sub-Saharan Africa, with profound economic implications. This study examines the economic burden of malaria by analyzing its effects on economic growth, labor productivity, healthcare expenditure, and overall economic stability. A systematic literature review was conducted using databases such as PubMed, Google Scholar, JSTOR, Web of Science, MEDLINE, and EMBASE, with search terms including “Malaria,” “Economic Costs,” “GDP Effect,” “Labor Productivity,” “Health Care Expenditure Impact,” and “Economic Growth.” The search was restricted to studies published between 2000 and 2023, excluding those lacking quantitative data or precise economic evaluations. Findings indicate that malaria significantly hampers GDP growth, reduces investment, and negatively impacts the tourism sector and human capital development. The disease contributes to high absenteeism and presentism, particularly in the agricultural sector, exacerbating poverty and food insecurity. Both direct and indirect economic costs impose a substantial burden on healthcare systems, households, and public services, creating poverty cycles and increasing debt among affected populations. To mitigate these effects, the study underscores the need for strengthened healthcare systems, enhanced prophylactic interventions, sustained research and development, economic support programs, and global collaboration. Given the significant impact of malaria on the health and economic status of nations, tackling both its health and economic effects will fast tract the attainment of sustainable development especially in malaria-endemic countries.
疟疾仍然是发展中国家,特别是撒哈拉以南非洲的一个重大公共卫生挑战,具有深远的经济影响。本研究通过分析疟疾对经济增长、劳动生产率、医疗保健支出和整体经济稳定性的影响来检验疟疾的经济负担。使用PubMed、谷歌Scholar、JSTOR、Web of Science、MEDLINE和EMBASE等数据库进行系统的文献综述,检索词包括“疟疾”、“经济成本”、“GDP效应”、“劳动生产率”、“医疗保健支出影响”和“经济增长”。这项研究仅限于2000年至2023年间发表的研究,排除了那些缺乏定量数据或精确经济评估的研究。研究结果表明,疟疾严重阻碍了GDP增长,减少了投资,并对旅游部门和人力资本开发产生了负面影响。该疾病导致缺勤和出勤率高,特别是在农业部门,加剧了贫困和粮食不安全。直接和间接的经济成本对卫生保健系统、家庭和公共服务造成了沉重的负担,造成了贫困循环,并增加了受影响人群的债务。为了减轻这些影响,该研究强调需要加强卫生保健系统、加强预防性干预、持续研发、经济支持计划和全球合作。鉴于疟疾对各国健康和经济状况的重大影响,处理其健康和经济影响将迅速促进实现可持续发展,特别是在疟疾流行国家。
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引用次数: 0
Integrating geospatial tools is crucial for enhancing control strategies against human lymphatic filarial infections in Ghana: A comprehensive review 综合地理空间工具对于加强加纳人淋巴丝虫病感染控制战略至关重要:一项全面审查
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-06-27 DOI: 10.1016/j.parepi.2025.e00444
Efiba Vidda Senkyire Kwarteng , Ebenezer Asiedu , Emmanuel Kobla Atsu Amewu , Arnold Abakah , Samuel Ato Andam-Akorful , Allan Alfred Duker , Alexander Kwarteng
In Ghana, lymphatic filariasis (LF) infection transmission remains high in some endemic foci and continues to frustrate current control programs, posing serious health threats. Over the years, significant economic investments and efforts have been made to control human filarial infections in endemic regions. The need for interdisciplinary strategic action is crucial in eliminating human filarial infections. In this review, we discuss the application and integration of geospatial technology and Geographic Information Systems tools into existing control strategies to accelerate the elimination of lymphatic filarial infections in Ghana. Our analysis of six publications that have applied geospatial tools in LF in Ghana reveals the potential of geospatial tools to enhance surveillance, predict risk factors, and monitor MDA programs. It also highlights the limited integration of these tools in current LF control strategies and the need to address challenges such as data availability and funding to fully realize their benefits.
在加纳,淋巴丝虫病(LF)感染传播在一些地方性疫源地仍然很高,并继续阻碍当前的控制规划,构成严重的健康威胁。多年来,为控制流行地区的人类丝虫病感染进行了大量的经济投资和努力。跨学科战略行动的必要性对于消除人类丝虫病感染至关重要。在这篇综述中,我们讨论了地理空间技术和地理信息系统工具在加纳现有控制策略中的应用和集成,以加速消除淋巴丝虫病感染。我们分析了在加纳LF应用地理空间工具的六份出版物,揭示了地理空间工具在加强监测、预测风险因素和监测MDA项目方面的潜力。它还强调了这些工具在当前LF控制策略中的有限集成,以及需要解决数据可用性和资金等挑战,以充分实现其优势。
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引用次数: 0
Biocontrol potential of Arabidopsis thaliana against Biomphalaria glabrata, the intermediate host of Schistosoma mansoni, focusing on biological, physiological, histopathological, and genotoxic impacts 拟南芥对曼氏血吸虫中间寄主光光生物phalaria glabrata的生物防治潜力,主要包括生物学、生理学、组织病理学和基因毒性影响
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-05-12 DOI: 10.1016/j.parepi.2025.e00428
Najla Y. Beit Elmal , Fathy A. Abdel Ghaffar , Salwa A.H. Hamdi , Amina M. Ibrahim , Mona F. Fol , Nesma A. Mostafa
Controlling Biomphalaria species with plant products is crucial in the treatment of schistosomiasis since it is eco-friendly and generally less harmful to non-target organisms. The goal of this study was to determine the molluscicidal activity of an aqueous extract of Arabidopsis thaliana leaves against Biomphalaria glabrata. A preliminary phytochemical screening test revealed the presence of flavonoids, terpenoids, steroids, anthraquinones, alkaloids, saponins, tannins, and carbohydrates. Following exposure to sub-lethal concentrations (LC10 75.62 mg/L and LC25 90.52 mg/L) of aqueous extract of A. thaliana, a reduction in survival, reproductive, and fecundity rates of B. glabrata were detected, as well as a substantial decrease in GSH, CAT, and SOD, while increasing MDA and NO levels. In addition, there was an increase in liver and renal functions as well as lipid profiles, compared to the control group. Histopathological examination of the digestive gland of treated B. glabrata showed a shrinkage of the tubules and an increase in the inter-tubular spaces as well as degeneration in the oocytes and spermatocytes of the hermaphrodite glands with a loss of connective tissues between the acini. Also, the comet assay revealed a genotoxic effect of aqueous extract of A. thaliana on B. glabrata, with a significant increase in the tail moment, tail length, and DNA percentage reflecting DNA damage compared to the control group. Conclusively, Arabidopsis thaliana aqueous extract acts as a natural molluscicidal agent against Biomphalaria glabrata.
用植物产品控制生物phalaria物种在血吸虫病治疗中至关重要,因为它是生态友好的,通常对非目标生物的危害较小。本研究的目的是测定拟南芥叶水提物对光斑生物的杀螺活性。初步的植物化学筛选试验显示黄酮类、萜类、类固醇、蒽醌类、生物碱、皂苷、单宁和碳水化合物。暴露于亚致死浓度(LC10 75.62 mg/L和LC25 90.52 mg/L)的拟南草水提物后,发现光斑拟南草的存活率、繁殖率和繁殖率下降,GSH、CAT和SOD显著降低,MDA和NO水平升高。此外,与对照组相比,肝脏和肾脏功能以及血脂都有所增加。对处理过的光斑扁豆消化腺的组织病理学检查显示小管缩小,管间间隙增加,雌雄同体腺体的卵母细胞和精母细胞变性,腺泡之间的结缔组织缺失。此外,彗星试验显示,拟南芥水提取物对光斑拟南芥具有遗传毒性作用,与对照组相比,尾巴力矩、尾巴长度和反映DNA损伤的DNA百分比显著增加。综上所述,拟南芥水提物是一种天然的杀螺剂。
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引用次数: 0
Prevalence and associated factors of malaria among febrile patients at two sites with different transmission intensities, Northwest Ethiopia 埃塞俄比亚西北部两个不同传播强度地点发热患者疟疾流行情况及相关因素
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-06-16 DOI: 10.1016/j.parepi.2025.e00441
Abebaw Setegn, Yalewayker Tegegne, Ligabaw Worku, Ayalew Jejaw Zeleke

Background

Malaria is the most prevalent and deadly mosquito-borne disease worldwide. In Ethiopia, Plasmodium falciparum and Plasmodium vivax coexist, adding to the country's malaria burden. Assessing the prevalence of malaria and identifying the factors linked to its transmission are essential strategies for effective prevention and control.

Objectives

To determine the prevalence and associated factors of malaria among febrile patients at two sites with different transmission intensities.

Methods

An institution-based comparative cross-sectional study was conducted from April to May 2021. The sample size was determined using the double population proportion formula, and participants were selected through a convenient sampling technique in which study participants were selected based on their easy convenience or willingness to participate until the expected sample size was obtained. Malaria diagnosis was performed via Geimsa-based microscopy. Data entry was performed using EpiData version 4.6.0, and analysis was carried out using Statistical Package for the Social Sciences (SPSS) version 20. Bivariate and multivariate analyses were conducted to identify factors associated with malaria, with a p-value <0.05 considered statistically significant. Additionally, the difference in malaria prevalence between the two study areas was assessed using the chi-square test.

Results

Among the 528 study participants, the overall malaria prevalence was 16.1 % (85/528). Specifically, the prevalence was 13.6 % (36/264) at Maksegnit Health Center and 18.6 % (49/264) at Sanja Health Center. The difference in malaria prevalence between the two study sites was not statistically significant (p > 0.05). In Maksegnit Health Center, malaria prevalence was significantly associated with the age groups 6–14 years: 16.09 (2.65–37.80) and 15–24 years: 8.21 (2.74–20.98), as well as rural residence 14.25 (3.13–44.86). In Sanja Health Center, significant associations were observed with the age group 15–24 years: 8.21 (2.74–20.98), lack of bed net availability: 11.84 (3.36–41.66), and recent travel history: 5.58 (1.32–23.70).

Conclusion

This study revealed that malaria prevalence was moderately high in both study areas, with no statistically significant difference between the two sites. However, unique factors were associated with malaria prevalence in each location. These findings underscore the importance of targeted interventions to address area-specific risk factors, such as improving bed net distribution, enhancing housing conditions, and eliminating mosquito-breeding sites.
疟疾是世界上最流行和最致命的蚊媒疾病。在埃塞俄比亚,恶性疟原虫和间日疟原虫共存,增加了该国的疟疾负担。评估疟疾流行情况和确定与疟疾传播有关的因素是有效预防和控制的基本战略。目的了解不同传播强度地区发热患者疟疾流行情况及相关因素。方法于2021年4 - 5月进行了一项基于机构的比较横断面研究。样本量采用双总体比例公式确定,参与者的选择采用方便抽样技术,即根据研究参与者的方便程度或参与意愿进行选择,直至获得预期样本量。通过基于geimsa的显微镜进行疟疾诊断。使用EpiData 4.6.0版本进行数据录入,使用SPSS 20版本进行分析。进行双变量和多变量分析以确定与疟疾相关的因素,p值<;0.05被认为具有统计学意义。此外,使用卡方检验评估了两个研究区域之间疟疾流行率的差异。结果528名研究对象中,疟疾总患病率为16.1%(85/528)。具体而言,Maksegnit保健中心的患病率为13.6% (36/264),Sanja保健中心的患病率为18.6%(49/264)。两个研究地点的疟疾患病率差异无统计学意义(p >;0.05)。在Maksegnit保健中心,疟疾患病率与6-14岁年龄组(16.09(2.65-37.80))和15-24岁年龄组(8.21(2.74-20.98))以及农村居民(14.25(3.13-44.86))显著相关。在Sanja卫生中心,15-24岁年龄组有显著相关性:8.21(2.74-20.98),缺少蚊帐:11.84(3.36-41.66),近期旅行史:5.58(1.32-23.70)。结论两个研究区疟疾流行率均为中高水平,差异无统计学意义。然而,与每个地点的疟疾流行有关的独特因素。这些发现强调了有针对性的干预措施的重要性,以解决特定地区的风险因素,如改善蚊帐分发、改善住房条件和消除蚊子滋生场所。
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引用次数: 0
Seroprevalence and risk factors of porcine cysticercosis in Mpwapwa district, eastern-Central Tanzania 坦桑尼亚中东部姆瓦普瓦地区猪囊虫病的血清流行率和危险因素
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-06-30 DOI: 10.1016/j.parepi.2025.e00445
Justine Daudi Maganira , Noel Mark Makwinya , Beda John Mwang'onde
Porcine cysticercosis, caused by the larval stage of Taenia species, poses significant health and economic challenges in low and lower-middle-income regions. This study assessed the seroprevalence and risk factors associated with the transmission of porcine cysticercosis in Mpwapwa District, eastern-central Tanzania, using a commercial antigen enzyme linked immunosorbent assay (Ag- ELISA). A cross-sectional survey was conducted in Gulwe, Ving'hawe, and Igovu villages during the dry season in June 2024. Blood samples were collected from 159 household pigs, and structured questionnaires were administered to heads or representatives of 51 pig-keeping households to identify potential risk factors. Serum samples from 29 pigs tested positive for porcine cysticercosis in the Ag-ELISA assay with an apparent prevalence of 18.24 % (95 % CI: 12.57 %–25.13 %), and estimated true prevalence of 17.91 % (95 % CI: 12.66 %–24.67 %). The apparent prevalence of porcine cysticercosis varied across the villages with Gulwe showing the highest prevalence (22.58 %; 95 % CI: 12.93 %–34.79 %), followed by Ving'hawe (21.21 % 95 % CI: 8.98 %–38.91 %), and Igovu (12.50 %; 95 % CI: 5.55 %–23.15 %). Female pigs exhibited a relatively higher seropositivity rate (13.84 %; 95 % CI: 8.88 %–20.20 %) compared to male pigs (4.40 %; 95 % CI: 1.79 %–8.86 %) although this difference was not statistically significant (χ2 = 0.629, p-value = 0.428). DNA extracted from cysticerci isolated from infected pigs slaughter in the study villages was confirmed via gel electrophoresis to belong to Taenia solium. Seropositivity was higher in adult pigs (14.47 %; 95 % CI: 9.84 %–20.77 %) than in growers (3.77 %; 95 % CI: 1.74 %–7.99 %), but this difference was not statistically significant (χ2 = 0.385, p = value = 0.535). Risk factor analysis identified the pig management system (OR = 2.47, p = 0.005), household pig herd size (OR = 3.08, p = 0.003), pig pen design (OR = 2.49, p = 0.002), feed source (OR = 3.08, p = 0.000), ignorance of porcine cysticercosis (OR = 1.57, p = 0.031) and presence of open-field defecation (OR = 1.47, p = 0.025) as significant contributors to the transmission of porcine cysticercosis. This study identifies a significant burden of porcine cysticercosis in Mpwapwa District, highlighting the need for effective control strategies to combat this zoonotic disease, protect smallholder livelihoods, and align with the WHO's 2030 targets for intensified T. solium control.
猪囊虫病是由带绦虫幼虫引起的,在低收入和中低收入地区构成重大的卫生和经济挑战。本研究使用商业抗原酶联免疫吸附试验(Ag- ELISA)评估了坦桑尼亚中东部Mpwapwa地区猪囊虫病的血清流行率和与传播相关的危险因素。在2024年6月旱季期间,在Gulwe、Ving'hawe和Igovu村进行了横断面调查。采集159头家庭猪的血液样本,并对51户养猪户的户主或代表进行结构化问卷调查,以确定潜在的危险因素。29头猪的血清样品经Ag-ELISA检测呈猪囊虫病阳性,表观患病率为18.24% (95% CI: 12.57% - 25.13%),估计真实患病率为17.91% (95% CI: 12.66% - 24.67%)。各村猪囊虫病表观流行率各不相同,居威村最高,为22.58%;95%置信区间:12.93% - -34.79%),其次是感恩节'hawe(21.21%, 95%置信区间CI: 8.98% -38.91%),和Igovu (12.50%;95% ci: 5.55% - 23.15%)。母猪血清阳性率较高,为13.84%;95% CI: 8.88% - 20.20%),而雄性猪(4.40%;95% CI: 1.79% - 8.86%),但差异无统计学意义(χ2 = 0.629, p值= 0.428)。从研究村屠宰的感染猪分离的囊虫中提取的DNA经凝胶电泳证实属于猪带绦虫。成年猪血清阳性率较高(14.47%;95%置信区间:9.84%比种植者(3.77%;-20.77%)95% CI: 1.74% ~ 7.99%),但差异无统计学意义(χ2 = 0.385, p = value = 0.535)。危险因素分析发现,猪管理制度(OR = 2.47, p = 0.005)、家庭猪群规模(OR = 3.08, p = 0.003)、猪圈设计(OR = 2.49, p = 0.002)、饲料来源(OR = 3.08, p = 0.000)、对猪囊虫病的无知(OR = 1.57, p = 0.031)和露天场所排便(OR = 1.47, p = 0.025)是猪囊虫病传播的重要影响因素。本研究确定了姆瓦普瓦县猪囊虫病的重大负担,强调需要制定有效的控制战略,以防治这种人畜共患疾病,保护小农生计,并与世卫组织2030年加强猪囊虫控制的目标保持一致。
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引用次数: 0
Global geographical distribution of Toxoplasma gondii genotypes from dogs: A systematic review 犬刚地弓形虫基因型的全球地理分布:系统综述
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1016/j.parepi.2025.e00433
Maryam Hataminejad , Mahbobeh Montazeri , Asal Tanzifi , Tahereh Mikaeili Galeh
Toxoplasma gondii (T. gondii) is a ubiquitous protozoan parasite with a complex life cycle involving various intermediate hosts, including dogs. Dogs can act as intermediate hosts for T. gondii, allowing the parasite to undergo asexual reproduction within their tissues. This can lead to the formation of tissue cysts containing bradyzoites, which can be transmitted to other hosts. Therefore, the infectious strains of T. gondii in dogs could reflect the primary genotypes infecting the environment, humans, and animals. This comprehensive research aims to assess the genetic diversity of T. gondii isolates collected from dogs worldwide. A thorough search of four academic databases (PubMed, Scopus, ScienceDirect, and Web of Science) and Google Scholar was conducted for literature published from January 1990 to March 2024. In the present study, a total of 26 papers met the criteria for inclusion. The results revealed that atypical genotypes were the most prevalent, accounting for 78.2 % of the total isolates (151 out of 193). Clonal Types III, II, and I were less frequent, with prevalence rates of 9.8 % (19 out of 193), 7.8 % (15 out of 193), and 3.1 % (6 out of 193), respectively. Type I clonal isolates have been documented in regions including Asia, Europe, and North America. Type II isolates have been identified in Africa, Europe, Oceania, and North America. Furthermore, Type III isolates, along with atypical genotypes, have been reported across Africa, Asia, North America, and South America. According to an analysis of 159 ToxoDB genotypes found in dogs worldwide, ToxoDB #2 (Type III) was the most prevalent genotype (18/159), followed by ToxoDB #1 or #3 (Type II) (15/159), ToxoDB #9 (15/159), and ToxoDB #20 (15/159). Overall, our study revealed low genetic diversity of T. gondii in dogs from Europe, Oceania, and Africa, with circulating clonal strains. Conversely, despite the higher number of isolates in Asia, North America, and South America, non-clonal parasites with extensive genetic diversity were prevalent.
刚地弓形虫(弓形虫)是一种普遍存在的原生动物寄生虫,具有复杂的生命周期,涉及多种中间宿主,包括狗。狗可以作为弓形虫的中间宿主,允许寄生虫在它们的组织中进行无性繁殖。这可能导致含有缓殖子的组织囊肿的形成,这可以传播给其他宿主。因此,犬感染弓形虫的菌株可以反映感染环境、人类和动物的主要基因型。这项综合研究的目的是评估从世界各地的狗身上收集的弓形虫分离株的遗传多样性。对PubMed、Scopus、ScienceDirect和Web of Science四个学术数据库和谷歌Scholar进行了全面检索,检索了1990年1月至2024年3月期间发表的文献。本研究共有26篇论文符合纳入标准。结果显示,非典型基因型最为普遍,占全部分离株的78.2%(193株中151株)。克隆型III、II和I较少见,患病率分别为9.8%(19 / 193)、7.8%(15 / 193)和3.1%(6 / 193)。I型克隆分离株在亚洲、欧洲和北美等地区均有记录。II型分离株已在非洲、欧洲、大洋洲和北美被发现。此外,III型分离株以及非典型基因型在非洲、亚洲、北美和南美均有报道。根据对全世界狗中发现的159种弓形虫基因型的分析,弓形虫2 (III型)是最普遍的基因型(18/159),其次是弓形虫1或3 (II型)(15/159),弓形虫9(15/159)和弓形虫20(15/159)。总体而言,我们的研究显示,来自欧洲、大洋洲和非洲的狗中弓形虫的遗传多样性较低,存在循环的克隆株。相反,尽管亚洲、北美和南美的分离株数量较多,但具有广泛遗传多样性的非克隆寄生虫普遍存在。
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引用次数: 0
Corrigendum to “Sliding mode control with stochastic modeling and mobility interaction for managing epidemic spread in high-population regions” [Parasite Epidemiology and Control, Volume 30 (2025), Article number e00439] “基于随机建模和流动性相互作用的滑模控制在人口密集地区控制流行病传播”的勘误表[寄生虫流行病学与控制,第30卷(2025),文章号e00439]
IF 2.4 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-07-26 DOI: 10.1016/j.parepi.2025.e00451
Dewi Suhika, Roberd Saragih, Dewi Handayani, Mochamad Apri
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引用次数: 0
Implemented strategic trypanosomosis and vector control activities along the Birbir River Basin through the application of deltamethrin-based insecticides using stationary attractive devices (targets), ground spraying, and live bait techniques 通过使用固定式吸引装置(目标物)、地面喷洒和活饵技术,在比尔比尔河流域使用溴氰菊酯类杀虫剂,实施了战略性锥虫病和病媒控制活动
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-05-27 DOI: 10.1016/j.parepi.2025.e00432
Behablom Meharenet, Tekalegn Desta, Dessalew Shitu, Mintesnot Tsegaye
Baseline and control intervention entomological and parasitological studies were conducted from September 2016 to February 2018 with the intended purpose of evaluating the effectiveness of implemented strategic trypanosomosis and vector control activities. The baseline and control intervention entomological studies compared and revealed a decline in the overall apparent fly density from 2.61 flies/trap/day during the baseline study to 1.68 flies/trap/day after the control intervention, representing a reduction of 64.37%. Additionally, the mean daily catch per trap showed a significant reduction from 5.23 ± 1.58 to 3.35 ± 1.58 (mean catch ± SD). The comparison of baseline and control study results showed a significant decline in the overall prevalence of bovine trypanosomosis, from 7.91% to 4.81% (likelihood ratio = 13.49, P ≤ 0.00), corresponding to a reduction of 60.81%. Furthermore, a better herd mean packed cell volume (PCV) was observed during the control intervention study (22.53 ± 4.48 and 25.68 ± 4.04, mean PCV ± SD) compared to the baseline (21.87 ± 4.57 and 25.41 ± 4.27, mean PCV ± SD) in parasite-infected cattle. Therefore, the results of the study clearly showed that the implemented vector control activity, specifically the application of deltamethrin insecticides on stationary attractive devices (targets), ground sprays, and live bait techniques, effectively suppressed both the vector population (Glossina flies) and parasite prevalence (trypanosomiasis) during the study period.
2016年9月至2018年2月进行了基线和控制干预昆虫学和寄生虫学研究,目的是评估实施的战略锥虫病和病媒控制活动的有效性。基线和对照干预昆虫学研究比较发现,总体表观蝇密度从基线研究期间的2.61只/诱蚊器/天下降到对照干预后的1.68只/诱蚊器/天,减少了64.37%。平均日捕获量由5.23±1.58降至3.35±1.58(平均捕获量±SD)。基线和对照研究结果的比较显示,牛锥虫病的总体患病率从7.91%下降到4.81%(似然比= 13.49,P≤0.00),下降了60.81%。此外,在对照干预研究中,感染寄生虫的牛群平均堆积细胞体积(PCV)(22.53±4.48和25.68±4.04,平均PCV±SD)优于基线(21.87±4.57和25.41±4.27,平均PCV±SD)。因此,研究结果清楚地表明,在研究期间实施的媒介控制活动,特别是溴氰菊酯杀虫剂在固定吸引装置(目标)上的应用,地面喷洒和活饵技术,有效地抑制了媒介种群(舌蝇)和寄生虫流行(锥虫病)。
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引用次数: 0
Corrigendum to “Prevalence of Strongyloidiasis in immunocompromised patients in Mazandaran Province of northern Iran: A comprehensive study utilizing simultaneous parasitological, serological, and molecular techniques” [Parasite Epidemiology, volume29 (May 2025), e00425]. “伊朗北部Mazandaran省免疫功能不全患者中圆线虫病的流行情况:一项同时利用寄生虫学、血清学和分子技术的综合研究”[寄生虫流行病学,vol . 29 (May 2025), e00425]。
IF 2.4 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1016/j.parepi.2025.e00434
Reza Saberi , Aliasghar Ghorbanzadeh , Rabeeh Tabaripour , Shahabeddin Sarvi , Shirzad Gholami , Seyed Abdollah Hosseini
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引用次数: 0
The use of systemic immune inflammatory index as a predictor for nematodes infections in horses 使用全身免疫炎症指数作为马线虫感染的预测因子
IF 2.4 Q3 INFECTIOUS DISEASES Pub Date : 2025-08-01 Epub Date: 2025-07-31 DOI: 10.1016/j.parepi.2025.e00453
Falmata Kyari , Cephas Joseph Pogu , Ismaila Alhaji Mairiga , Lawan Adamu

Background

Nematode infections are a significant health concern in horses, causing a range of clinical signs and economic losses. Early detection and diagnosis are crucial for effective treatment and management.

Objectives

Examining the application of the systemic immune Inflammatory index (SII) as a predictor for nematode infections in horses, using platelets count, leucocytes count, and neutrophils count.

Methods

A cross-sectional study was conducted on 164 horses, consisting of 66 horses with nematode infections and 98 horses without infections. The SII was computed using the platelets count, leucocytes count, and neutrophils count. Receiver operating characteristic (ROC) curve analysis was used to evaluate the SII's diagnostic accuracy.

Results

Nematode infections were severe in horses with mixed infections, with an average of 1805.90 ± 292.68 eggs per gram (epg). Notably, among specific species, Cyathostomum spp., exhibited a significantly different average of 2264.29 ± 132.61epg compared to other nematodes. There is a significant negative correlations between the systemic immune-inflammatory index (SII) and the Eggs per gram count for nematodes infections at (r = −0.6023; P < .0001). The SII values were significantly lower (0.06) in horses with nematode infections compared to those without infections (0.19) at p < .001. With an area under the ROC curve (AUC) of 0.990, the SII demonstrated exceptional diagnostic precision. For the SII, the ideal cut-off value is ≤0.108, with a sensitivity of 98.5 % and a specificity of 100 %. The ROC curve was validated using the Youden index (J) with a higher value of 0.9848 indicating better performance.

Conclusion

The study demonstrated that the SII is a reliable predictor for nematode infections in horses, using platelets count, leucocytes count, and neutrophils count. The SII is a non-invasive, reasonably priced method for identifying and diagnosing nematode infections in horses.
线虫感染是马的一个重大健康问题,可引起一系列临床症状和经济损失。早期发现和诊断对于有效治疗和管理至关重要。目的探讨全身免疫炎症指数(SII)作为马线虫感染预测指标的应用,包括血小板计数、白细胞计数和中性粒细胞计数。方法对164匹马进行横断面研究,其中66匹马感染线虫病,98匹马未感染线虫病。SII通过血小板计数、白细胞计数和中性粒细胞计数来计算。采用受试者工作特征(ROC)曲线分析评价SII的诊断准确性。结果混合感染马的线虫感染较为严重,平均每克(epg)有1805.90±292.68个卵。在特定种类中,Cyathostomum spp.的平均值为2264.29±132.61epg,显著高于其他线虫。全身免疫炎症指数(SII)与线虫感染的每克卵数呈显著负相关(r = - 0.6023;P & lt;。)。感染线虫马的SII值(0.06)显著低于未感染线虫马的SII值(0.19)。措施。SII的ROC曲线下面积(AUC)为0.990,显示出卓越的诊断精度。SII的理想临界值≤0.108,灵敏度为98.5%,特异性为100%。采用约登指数(J)对ROC曲线进行验证,0.9848越高表示性能越好。结论研究表明,通过血小板计数、白细胞计数和中性粒细胞计数,SII是马线虫感染的可靠预测因子。SII是一种非侵入性,价格合理的方法,用于识别和诊断马的线虫感染。
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Parasite Epidemiology and Control
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