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The impact of epidemic experiences on biosecurity behavior of pig farmers: an analysis based on protection motivation theory
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-12-01 DOI: 10.1016/j.onehlt.2024.100936
Wenying Zhang, Qian Lu
Farm biosecurity is considered an important component of “One Health”. Biosecurity measures are crucial for preventing and controlling outbreaks and spread of diseases on farms. Protection motivation theory (PMT) links perception of risk and coping ability with taking preventive actions. Based on field survey data of pig farmers, this study utilizes OLS and mediating effect model to explore the impact and mechanism of epidemic experiences on farmers' implementation of biosecurity measures. The research findings are as follows: first, epidemic experiences significantly promote farmers' implementation of biosecurity measures. The conclusion remains robust after addressing potential endogeneity issues. Second, epidemic experiences, through accumulated experience, further encourage farmers to implement biosecurity measures. Third, the impact of epidemic experiences on farmers' biosecurity behavior shows heterogeneity in farm size. Compared to small-scale farmers, epidemic experiences have a greater promoting effect on biosecurity behavior of professional farmers. Therefore, emphasizing farmers' epidemic experiences, enhancing biosecurity training, and increasing farmers' awareness are of significant importance in promoting farmers' implementation of biosecurity measures.
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引用次数: 0
Geographical factors and air raid alarms influence leptospirosis epidemiology in Ukraine (2018–2023)
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-12-01 DOI: 10.1016/j.onehlt.2024.100944
Pavlo Petakh , Wolfgang Huber , Oleksandr Kamyshnyi
Leptospirosis, a widespread zoonotic disease caused by Leptospira spp., affects approximately 1 million people annually and causes about 58,000 deaths worldwide. This study examines the epidemiology of leptospirosis in Ukraine from 2018 to 2023, focusing on the impact of weather and geographical factors on disease transmission. Data from the Ukrainian Centre for Disease Prevention and Control, the Ukrainian Hydrometeorological Center, and the State Agency of Water Resources of Ukraine were analyzed. The country was divided into five regions: North, East, Center, South, and West. For the visualization, but not the quantitative analyses, the notification rate (NR) of leptospirosis was classified into three categories: low, moderate, and high.
The highest NR were in Zakarpattia, Ivano-Frankivsk, Khmelnytskyi, Mykolaiv, and Kherson regions, with Zakarpattia having the highest rate. We analyzed whether various weather parameters—such as average annual temperature, precipitation, days with precipitation ≥1 mm, and relative humidity—were associated with the notification rate (NR) of leptospirosis, but no significant correlations were detected.
However, a significant positive correlation was observed between higher density of the river network and NR (Kendall's rank correlation, r = 0.65, p = 0.0005), indicating that geographical factors may play an important role in Leptospira transmission. Additionally, we found a significant correlation between monthly air raid alarm frequency and the NR of leptospirosis cases in 2023. Case reports of individuals contracting leptospirosis in bomb shelters further support the hypothesis that air raid evacuations impact leptospirosis epidemiology. Further investigation is needed to fully understand this relationship and its implications.
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引用次数: 0
A landscape analysis and one health approach to an invasive species pathway: Pet and aquaria trade in the eastern Caribbean
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-12-01 DOI: 10.1016/j.onehlt.2024.100942
Kirk O. Douglas , Diana Francis , Naitram Ramnanan

Background

The pet and aquaria trade is a pathway for the introduction of invasive alien species (IAS) into sensitive Caribbean ecosystems. This study aims to assess the impact of this trade on IAS management in the Caribbean.

Methods

A multipronged approach was used, involving stakeholder engagement, trade flow analysis, questionnaires, a regional IAS workshop, and a One Health Invasive Alien Species Prioritization (OHIASP) method, to examine the pet and aquaria trade in Barbados and the Organisation of Eastern Caribbean States (OECS). These methods allow for a comprehensive tool necessary to prioritise IAS challenges worldwide particularly in Barbados and the OECS.

Results

The study assessed seven Caribbean countries: Barbados, St. Lucia, Grenada, Dominica, St. Kitts and Nevis, St. Vincent and the Grenadines, and Antigua and Barbuda. Barbados reported the highest annual import values for pets (USD $371,604) and aquaria (USD $450,860) using data from 2016 to 2020. The species range was very narrow and likely a reflection of data collection systems. Trinidad and Tobago was the primary regional source for pet and aquaria imports. In total, 35 IAS were chosen for prioritization. Based on their weighted score, prioritized IAS were ranked in order of relative importance using a one-to-five selection scale. A priority list of 13 IAS was identified from the pet/aquaria imported into Barbados and the OECS.

Conclusions

This marks the first ever study using an OHIASP tool for examining, quantifying and ranking IAS risks in pet and aquaria trade pathways. This can assist zoonotic disease risk prioritization where necessary. Effective IAS management in the Caribbean requires multipronged approaches, data and information systems that integrate indigenous knowledge, leverage digital tools, and build community ownership, to overcome inherent regional vulnerabilities.
{"title":"A landscape analysis and one health approach to an invasive species pathway: Pet and aquaria trade in the eastern Caribbean","authors":"Kirk O. Douglas ,&nbsp;Diana Francis ,&nbsp;Naitram Ramnanan","doi":"10.1016/j.onehlt.2024.100942","DOIUrl":"10.1016/j.onehlt.2024.100942","url":null,"abstract":"<div><h3>Background</h3><div>The pet and aquaria trade is a pathway for the introduction of invasive alien species (IAS) into sensitive Caribbean ecosystems. This study aims to assess the impact of this trade on IAS management in the Caribbean.</div></div><div><h3>Methods</h3><div>A multipronged approach was used, involving stakeholder engagement, trade flow analysis, questionnaires, a regional IAS workshop, and a One Health Invasive Alien Species Prioritization (OHIASP) method, to examine the pet and aquaria trade in Barbados and the Organisation of Eastern Caribbean States (OECS). These methods allow for a comprehensive tool necessary to prioritise IAS challenges worldwide particularly in Barbados and the OECS.</div></div><div><h3>Results</h3><div>The study assessed seven Caribbean countries: Barbados, St. Lucia, Grenada, Dominica, St. Kitts and Nevis, St. Vincent and the Grenadines, and Antigua and Barbuda. Barbados reported the highest annual import values for pets (USD $371,604) and aquaria (USD $450,860) using data from 2016 to 2020. The species range was very narrow and likely a reflection of data collection systems. Trinidad and Tobago was the primary regional source for pet and aquaria imports. In total, 35 IAS were chosen for prioritization. Based on their weighted score, prioritized IAS were ranked in order of relative importance using a one-to-five selection scale. A priority list of 13 IAS was identified from the pet/aquaria imported into Barbados and the OECS.</div></div><div><h3>Conclusions</h3><div>This marks the first ever study using an OHIASP tool for examining, quantifying and ranking IAS risks in pet and aquaria trade pathways. This can assist zoonotic disease risk prioritization where necessary. Effective IAS management in the Caribbean requires multipronged approaches, data and information systems that integrate indigenous knowledge, leverage digital tools, and build community ownership, to overcome inherent regional vulnerabilities.</div></div>","PeriodicalId":19577,"journal":{"name":"One Health","volume":"19 ","pages":"Article 100942"},"PeriodicalIF":4.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating a propagation of emerging carbapenemase-producing Enterobacteriaceae in Dutch broiler production pyramid through stochastic simulation 通过随机模拟调查荷兰肉鸡生产金字塔中新出现的产碳青霉烯酶肠杆菌的传播情况
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-26 DOI: 10.1016/j.onehlt.2024.100945
N. Dankittipong , J.A. Stegeman , C.J. de Vos , J.A. Wagenaar , E.A.J. Fischer
Simulating resistant bacteria transmission in livestock informs surveillance strategies for emerging threats like Carbapenem-resistant Enterobacteriaceae (CPE), aiding targeted surveillance and detecting CPE through active methods. We employed a simulation model to assess three potential scenarios for introducing CPE: 1) a single import of live animals, 2) the use of contaminated feed, and 3) multiple imports of live animals. Employing the SimInf package, we constructed a population model for broiler production, encompassing rearing farms, multiplier farms, hatcheries, and broiler farms. Subsequently, we introduced CPE and allowed it to spread throughout the population using the Susceptible-Colonized (Infectious)-Susceptible model. The model ran for 10 years with 100 runs.
In the single import scenario, 1–2 rearing and multiplier farms saw major outbreaks in all 100 runs, while the broiler farm experienced major outbreaks in only 10 out of 100 runs; in the feed scenario, major outbreaks occurred in rearing farms in 32 runs and in multiplier farms in 26 runs, with major outbreaks in broiler farms observed in all 100 runs; in the multiple import scenario, outbreaks in rearing and multiplier farms happened in all 100 runs, with these major outbreaks reaching the broiler farm in 91 out of 100 runs. CPE transmission from imported or colonized broilers is rapid but short-lived within the broiler population, contrasting with the sporadic and prolonged emergence of CPE from contaminated feed, resulting in lower cumulative probabilities of detection from imported or colonized animals (0–0.50) compared to contaminated feed (0.9–0.97) over a 10-year period. Sensitivity analysis indicated that key outcomes such as farm outbreaks, chicken colonization, and outbreak duration are highly correlated with age-associated reductions in transmission (ψ).
模拟耐药菌在家畜中的传播为针对耐碳青霉烯类肠杆菌科细菌(CPE)等新出现威胁的监控策略提供信息,有助于通过主动方法进行有针对性的监控和检测 CPE。我们采用模拟模型评估了引入 CPE 的三种可能情况:1)单次进口活畜;2)使用受污染的饲料;3)多次进口活畜。我们利用 SimInf 软件包构建了肉鸡生产的种群模型,其中包括育雏场、增殖场、孵化场和肉鸡养殖场。随后,我们引入了 CPE,并使用易感-感染(传染性)-易感模型让 CPE 在整个种群中传播。该模型运行了 10 年,共运行 100 次。在单一进口情况下,1-2 个育雏场和增殖场在所有 100 次运行中都出现了重大疫情,而肉鸡场在 100 次运行中只有 10 次出现重大疫情;在饲料情况下,育雏场在 32 次运行中出现重大疫情,增殖场在 26 次运行中出现重大疫情,肉鸡场在所有 100 次运行中都出现重大疫情;在多次进口情况下,育雏场和增殖场在所有 100 次运行中都出现重大疫情,肉鸡场在 100 次运行中 91 次出现重大疫情。进口或定植的肉鸡传播 CPE 的速度很快,但在肉鸡群体中的持续时间很短,这与受污染饲料中 CPE 的零星和长期出现形成鲜明对比,导致 10 年内进口或定植动物的累计检测概率(0-0.50)低于受污染饲料的检测概率(0.9-0.97)。敏感性分析表明,农场疫情、鸡定植和疫情持续时间等关键结果与年龄相关的传播降低率(ψ)高度相关。
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引用次数: 0
Purchase, consumption, and ownership of chickens and chicken products among households in Maputo, Mozambique: A cross-sectional study 莫桑比克马普托家庭购买、消费和拥有鸡及鸡产品的情况:横断面研究
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-22 DOI: 10.1016/j.onehlt.2024.100943
Kayoko Shioda , Frederica Smith , Hermógenes Neves Mucache , Anushka Reddy Marri , Jhanel Chew , Karen Levy , Matthew C. Freeman

Background

Chickens are an important source of animal protein, nutrition, and income in many low- and middle-income countries (LMICs). They are also a major reservoir of enteropathogens that contribute to the burden of illnesses among children. Food systems present a risk for transmission of enteropathogens from poultry to humans, but there is a lack of population-level data on the pattern of purchase, ownership, and consumption of live chickens and their products in LMICs to better characterize that risk.

Methods

To assess chicken purchase, ownership, and consumption practices, we conducted a population-based survey using a structured questionnaire in Maputo, Mozambique in 2021. Multi-stage cluster sampling was used to obtain a representative sample of households in our study area. To minimize sampling bias and ensure a representative sample, we applied survey weighting using district-level population data and estimated weighted population-level values.

Results

Heads of 570 households in Maputo completed our survey. Approximately half of these households purchased broiler chicken meat (weighted percentage of households: 44.8 %) and eggs (46.5 %) in the previous week of the survey date, while indigenous chicken meat was less popular (1950, 1.1 %). The most common source of chicken products was corner stores (i.e., small convenience shops on streets), followed by wet markets. Live chickens were raised by 15.6 % of households, and chicken feces were observed on the floor or ground at the majority of these households during house visits.

Discussion

Our findings suggest that poultry provides a major source of animal protein in this setting. Given the predicted growth of poultry farming in LMICs in the coming decades, implementing One Health-based food safety measures at primary sources of chicken products, such as corner stores and wet markets, will be critical to controlling zoonotic pathogen transmission risks.
背景鸡是许多中低收入国家(LMICs)重要的动物蛋白、营养和收入来源。它们也是肠道病原体的主要贮藏地,造成了儿童的疾病负担。食品系统存在将肠道病原体从家禽传染给人类的风险,但目前缺乏有关低收入和中等收入国家购买、拥有和消费活鸡及其产品的模式的人口数据,因此无法更好地描述这种风险。我们采用多阶段聚类抽样法获得了研究地区具有代表性的家庭样本。为尽量减少抽样偏差并确保样本的代表性,我们使用地区级人口数据进行调查加权,并估算出加权后的人口级数值。这些家庭中约有一半在调查日的前一周购买了肉鸡肉(加权家庭百分比:44.8%)和鸡蛋(46.5%),而土鸡肉则不太受欢迎(1950 年,1.1%)。鸡肉产品最常见的来源是街角小店(即街道上的小型便利店),其次是露天市场。15.6% 的家庭饲养活鸡,在入户访问期间,在大多数家庭的地板或地面上都能看到鸡粪便。鉴于预计未来几十年低收入和中等收入国家的家禽养殖业将会增长,在鸡肉产品的主要来源(如街边小店和湿货市场)实施基于 "同一健康 "的食品安全措施对于控制人畜共患病病原体的传播风险至关重要。
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引用次数: 0
Genomic characterization and cross-species transmission potential of hedgehog coronavirus 刺猬冠状病毒的基因组特征和跨物种传播潜力
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-19 DOI: 10.1016/j.onehlt.2024.100940
Andreia V.S. Cruz , Sérgio Santos-Silva , Luís Queirós-Reis , Clarisse Rodrigues , Vanessa Soeiro , Rachael E. Tarlinton , João R. Mesquita
In the 21st century, three betacoronaviruses (SARS-CoV, MERS-CoV and SARS-CoV-2) have emerged in humans worldwide as a result of animal spillover, causing severe respiratory infections and resulting in more than seven million deaths. In 2013, a novel Betacoronavirus closely related to MERS-CoV (Betacoronavirus cameli) was discovered in European hedgehogs (Erinaceus europaeus), raising questions on the possibility of hedgehog-to-human transmission. Hence, the present study aimed to investigate and characterize the presence and genetic diversity of coronaviruses in hedgehogs from Portugal, as well as their potential for cross-species transmission. To achieve this, fecal samples from 110 hedgehogs at two recovery centers and one environmental non-governmental organization were tested for coronaviruses using a broad-spectrum nested RT-PCR assay targeting the RdRp gene. Of these samples, 24.5 % tested positive, most belonging to the Betacoronavirus genus. However, the present study also reports, for the first time, Alphacoronaviruses in hedgehogs, showing 100 % identity with a Bat coronavirus (a variant of Alphacoronavirus miniopteri). The genome sequencing of one betacoronavirus-positive sample yielded 65 % of a full-length genome, with the closest homology (93.5 %) to Betacoronavirus erinacei from the United Kingdom. Computational protein-protein docking studies predicted the binding affinity between the spike protein of hedgehog coronavirus and cell receptors of mammal species that interact with hedgehogs. The results obtained raise the question of whether hedgehog CoV uses the same receptor as MERS-CoV or a different receptor to enter host cells. Thus, this study enhances our understanding of the epidemiology of coronaviruses, emphasizing the need for further investigation into cross-species transmission risks.
21 世纪以来,由于动物传播,世界范围内出现了三种贝他克罗那病毒(SARS-CoV、MERS-CoV 和 SARS-CoV-2),它们在人类中引起了严重的呼吸道感染,导致 700 多万人死亡。2013年,在欧洲刺猬(Erinaceus europaeus)中发现了一种与MERS-CoV密切相关的新型β冠状病毒(Betacoronavirus cameli),引发了刺猬向人类传播的可能性问题。因此,本研究旨在调查和描述葡萄牙刺猬中冠状病毒的存在和遗传多样性,以及其跨物种传播的可能性。为此,研究人员使用针对 RdRp 基因的广谱巢式 RT-PCR 检测法,对两个康复中心和一个非政府环保组织的 110 只刺猬的粪便样本进行了冠状病毒检测。在这些样本中,24.5%的检测结果呈阳性,其中大部分属于贝塔科罗纳病毒属。不过,本研究还首次报告了刺猬中的阿尔法冠状病毒,与一种蝙蝠冠状病毒(一种小型阿尔法冠状病毒的变种)显示出100%的一致性。对一个 Betacoronavirus 阳性样本的基因组测序得到了 65% 的全长基因组,与英国的 Betacoronavirus erinacei 的同源性(93.5%)最接近。计算蛋白对接研究预测了刺猬冠状病毒尖峰蛋白与哺乳动物细胞受体之间的结合亲和力,这些受体与刺猬有相互作用。研究结果提出了一个问题:刺猬冠状病毒是利用与MERS-CoV相同的受体还是不同的受体进入宿主细胞。因此,这项研究加深了我们对冠状病毒流行病学的了解,强调了进一步调查跨物种传播风险的必要性。
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引用次数: 0
Methicillin-resistant and methicillin-susceptible Staphylococcus aureus in French hedgehogs admitted to a wildlife health center 野生动物健康中心收治的法国刺猬中的耐甲氧西林和甲氧西林敏感金黄色葡萄球菌
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-19 DOI: 10.1016/j.onehlt.2024.100938
Marisa Haenni , Séverine Murri , Caroline Lefrère , Jesper Larsen , Antoine Drapeau , Julie Botman , Pauline François , Philippe Gourlay , François Meurens , Jean-Yves Madec
The mecC gene conferring methicillin-resistance has always been found on a SCCmec type XI element and is largely restricted to the few clonal complexes CC130, CC1943, CC425, CC49 and CC599. The occurrence of the mecC gene in many different hosts highlighted its One Health importance, even though European hedgehogs (Erinaceus europaeus) are considered its natural reservoir, most probably because of the selective pressure imposed by beta-lactam-producing dermatophytes (Trichophyton erinacei) that colonize the skin of these mammals. Surprisingly, while the presence of T. erinacei on the French territory has been proven, no mecC-positive methicillin-resistant Staphylococcus aureus (MRSA) isolate has been reported yet from hedgehogs. We thus sampled 139 hedgehogs brought to a wildlife center; 128 were S. aureus carriers and 25 (18.0 %) presented a MRSA isolate, of which 21 (15.1 %) displayed the mecC gene. All 161 S. aureus collected were whole-genome sequenced. The mecC-MRSA belonged to the classical CCs, i.e. CC130, CC1943 and CC49. The majority (98/139, 70.5 %) of the methicillin-susceptible Staphylococcus aureus (MSSA) isolates also belonged to these three CCs. A phylogenetic comparison with mecC-MRSA isolates from all over Europe and New-Zealand showed local adaptations, despite the fact that they all belonged to the same CCs. The acquisition of the SCCmec type XI element by a concomitant MSSA could not be observed in the same animal, but such a transfer might be suggested since identical clones were identified, one MSSA and one MRSA, though in different animals. In parallel, we conducted a detailed analysis of the SCCmec type XI element as well as specific virulence factors (a tst variant and the vwbSaPI gene). Results led us to hypothesize that the mecC gene might be acquired through selective pressure of T. erinacei on MSSA, some of which were acquired a long time ago from ruminants and are now colonizing the skin of the hedgehogs.
赋予甲氧西林抗性的 mecC 基因一直存在于 SCCmec XI 型元件上,而且主要局限于 CC130、CC1943、CC425、CC49 和 CC599 等少数几个克隆复合体。尽管欧洲刺猬(Erinaceus europaeus)被认为是mecC基因的天然储库,但mecC基因在许多不同宿主中的出现凸显了其在 "一种健康 "方面的重要性,这很可能是因为定殖于这些哺乳动物皮肤上的产β-内酰胺的皮癣菌(Trichophyton erinacei)施加了选择性压力。令人惊讶的是,虽然法国境内已经证实存在埃里纳西毛癣菌,但还没有从刺猬身上分离到甲氧西林阳性耐甲氧西林金黄色葡萄球菌(MRSA)的报道。因此,我们对送到野生动物中心的 139 只刺猬进行了采样;其中 128 只为金黄色葡萄球菌携带者,25 只(18.0%)出现 MRSA 分离物,其中 21 只(15.1%)显示有 mecC 基因。对收集到的所有 161 个金黄色葡萄球菌进行了全基因组测序。mecC-MRSA属于经典的CC,即CC130、CC1943和CC49。大部分(98/139,70.5%)对甲氧西林敏感的金黄色葡萄球菌(MSSA)分离物也属于这三个CC。与来自欧洲各地和新西兰的 mecC-MRSA 分离物进行的系统发育比较显示,尽管这些分离物都属于相同的 CCs,但它们都有地方适应性。在同一种动物身上无法观察到同时存在的 MSSA 获得 SCCmec XI 型元件的情况,但由于在不同的动物身上发现了相同的克隆(一种是 MSSA,一种是 MRSA),因此可以认为存在这种转移。与此同时,我们还对 SCCmec XI 型元件以及特定毒力因子(tst 变体和 vwbSaPI 基因)进行了详细分析。结果让我们推测,mecC 基因可能是通过 T. erinacei 对 MSSA 的选择性压力而获得的,其中一些 MSSA 很久以前就是从反刍动物身上获得的,现在正在刺猬的皮肤上定植。
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引用次数: 0
Association between precipitation events, drought, and animal operations with Salmonella infections in the Southwest US, 2009–2021 2009-2021 年美国西南部降水事件、干旱和动物饲养与沙门氏菌感染之间的关系
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-19 DOI: 10.1016/j.onehlt.2024.100941
Erika Austhof , Kristen Pogreba-Brown , Alice E. White , Rachel H. Jervis , Joli Weiss , Sarah Shrum Davis , Delaney Moore , Heidi E. Brown

Background

Temperature and precipitation have previously been associated with Salmonella infections. The association between salmonellosis and precipitation might be explained by antecedent drought conditions; however, few studies have explored this effect.

Methods

Using an ecological study design with public health surveillance, meteorological (total precipitation [inches], temperature [average °F], Palmer Drought Severity Index [PDSI, category]), and livestock data we explored the association between precipitation and Salmonella infections reported in 127/141 counties from 2009 to 2021 in the Southwest, US and determined how this association was modified by antecedent drought. To explore the acute effect of precipitation on Salmonella infections we used negative binomial generalized estimating equations adjusted for temperature with a 2-week lag resulting in Incidence Rate Ratios (IRR). Stratified analyses were used to explore the effect of antecedent drought and type of animal density on this association.

Results

A one inch increase in precipitation was associated with a 2 % increase in Salmonella infections reported two weeks later (IRR: 1.02, 95 % CI: 1.00, 1.04) after adjusting for average temperature and PDSI. Precipitation following moderate (IRR: 1.22, 95 % CI: 1.17, 1.28) and severe drought (IRR: 1.16, 95 % CI: 1.10, 1.22) was associated with a significant increase in cases, whereas in the most extreme drought conditions, cases were significantly decreased (IRR: 0.89, 95 % CI: 0.85, 0.94). Overall, more precipitation (above a 30-year normal, the 95th and 99th percentiles) were associated with greater increases in cases, with the highest increase following moderate and severe drought. Counties with a higher density of chicken and beef cattle were significantly associated with increased cases regardless of drought status, whereas dairy cattle, and cattle including calves had mixed results.

Discussion

Our study suggests precipitation following prior dry conditions is associated with an increase in salmonellosis in the Southwest, US. Public health is likely to see an increase in salmonellosis with extreme precipitation events, especially in counties with a high density of chicken and beef cattle.
背景以前,温度和降水与沙门氏菌感染有关。沙门氏菌病与降水量之间的关联可能是由先期干旱条件造成的,但很少有研究探讨这种影响。方法我们采用生态学研究设计,利用公共卫生监测、气象(总降水量 [英寸]、温度 [平均华氏度]、帕尔默干旱严重程度指数 [PDSI,类别])和牲畜数据,探讨了 2009 年至 2021 年美国西南部 127/141 个县的降水量与沙门氏菌感染之间的关联,并确定了这种关联如何受先前干旱的影响。为了探讨降水对沙门氏菌感染的急性影响,我们使用了负二项广义估计方程,并根据气温调整了 2 周的滞后期,得出了发病率比 (IRR)。结果 在对平均气温和 PDSI 进行调整后,降水量增加一英寸与两周后沙门氏菌感染率增加 2% 有关(IRR:1.02,95 % CI:1.00,1.04)。中度干旱(IRR:1.22,95 % CI:1.17,1.28)和严重干旱(IRR:1.16,95 % CI:1.10,1.22)后的降水与病例显著增加有关,而在最极端的干旱条件下,病例显著减少(IRR:0.89,95 % CI:0.85,0.94)。总体而言,降水量越多(超过 30 年正常值、第 95 百分位数和第 99 百分位数),病例增加越多,中度和严重干旱后病例增加最多。无论干旱状况如何,鸡和肉牛密度较高的县与病例增加有显著相关性,而奶牛和包括小牛在内的牛的结果则好坏参半。 讨论我们的研究表明,在之前的干旱条件下出现的降水与美国西南部沙门氏菌病的增加有关。随着极端降水事件的发生,公共卫生可能会看到沙门氏菌病的增加,特别是在鸡和肉牛密度较高的县。
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引用次数: 0
Advancing West Nile virus monitoring through whole genome sequencing: Insights from a One Health genomic surveillance study in Romagna (Italy) 通过全基因组测序推进西尼罗河病毒监测:意大利罗马涅 "一个健康 "基因组监测研究的启示
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-19 DOI: 10.1016/j.onehlt.2024.100937
Martina Brandolini , Alessandra Mistral De Pascali , Irene Zaghi , Giorgio Dirani , Silvia Zannoli , Ludovica Ingletto , Antonio Lavazza , Davide Lelli , Michele Dottori , Mattia Calzolari , Massimiliano Guerra , Carlo Biagetti , Francesco Cristini , Paolo Bassi , Rino Biguzzi , Monica Cricca , Alessandra Scagliarini , Vittorio Sambri
In the last 6 years, Italy accounted for 36 % of the total autochthonous European West Nile virus (WNV) cases reported to ECDC. Since 2001, the country put in place a multi-species national surveillance plan. The plan was enhanced in 2020 by adopting a fully integrated “One Health” approach, including human, wild bird, equine, and mosquito surveillance for the early detection of WNV. In this context, the systematic acquisition of whole viral genetic information from human patients and animals is fundamental to obtain an in-depth knowledge on the patterns of virus evolution and transmission and to gain insights on the role virus genetics in morbidity and mortality, The purpose of this pilot study was thus to design a One-Health surveillance framework based on the genomic surveillance of WNV circulating at the vector-human-animal interface, in the endemic territory of Romagna (North-Eastern Italy) during the 2023 transmission season. Whole genome sequencing (WGS) analyses confirmed the circulation of WNV lineage 2 showing high nucleotide and amino acid identity of 99.82 % and 99.92 % respectively among viral sequences from human patients, vectors and birds. All the sequences clustered with other Italian strains in the Central and Southern European clade with robust bootstrap support and BLASTn identity exceeding 99.7 %. The highest nucleotide identity was observed with sequences from Emilia-Romagna and Veneto regions (Italy), confirming a local virus circulation and overwintering of WNV lineage 2 with a confined virus spread and no (or limited) external introduction of viral strains. Our results, support the adoption of a One Health approach to WNV surveillance, based on WGS and integrating the clinical diagnosis, epidemiology, and genomic characterisation, to create a suitable operational process for the characterisation of autochthonous and imported Arboviruses circulating in Romagna to effectively integrate the already established surveillance plan.
在过去 6 年中,向欧洲疾病控制中心报告的欧洲西尼罗河病毒(WNV)自传播病例总数中,意大利占 36%。自 2001 年以来,意大利实施了一项多物种国家监测计划。2020 年,该计划得到了加强,采用了全面综合的 "统一健康 "方法,包括人类、野鸟、马和蚊子监测,以早期发现西尼罗河病毒。在此背景下,从人类患者和动物身上系统地获取全病毒基因信息对于深入了解病毒进化和传播模式以及深入了解病毒遗传学在发病率和死亡率中的作用至关重要。全基因组测序(WGS)分析证实了 WNV 2 系的流行,在来自人类患者、载体和鸟类的病毒序列中,核苷酸和氨基酸的同一性分别高达 99.82 % 和 99.92 %。所有序列都与中欧和南欧支系中的其他意大利毒株聚类,具有强大的引导支持,BLASTn同一性超过 99.7 %。来自艾米利亚-罗马涅大区和威尼托大区(意大利)的序列具有最高的核苷酸同一性,这证实了 WNV 2 系在当地的病毒循环和越冬,病毒传播范围有限,没有(或仅有少量)从外部引入病毒株。我们的研究结果支持在 WNV 监测中采用 "统一健康"(One Health)方法,以 WGS 为基础,整合临床诊断、流行病学和基因组特征描述,为描述在罗马涅地区流行的本地和外来阿博病毒的特征创建合适的操作流程,从而有效整合已制定的监测计划。
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引用次数: 0
Autochthonous simian malaria in Brazil outside the Amazon: Emergence, zoonotic transmission and implications for disease control 巴西亚马逊河流域以外的自生猿类疟疾:出现、人畜共患病传播及对疾病控制的影响
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-19 DOI: 10.1016/j.onehlt.2024.100928
Beatriz Pires da Silva , Ricardo Lourenço-de-Oliveira , Jacqueline de Aguiar Barros , Patrícia Brasil , Cláudio Tadeu Daniel-Ribeiro , Maria de Fátima Ferreira da Cruz
Although human malaria is endemic in the Brazilian Amazonian region, autochthonous cases are registered regularly outside this region in areas under the couverture of the Atlantic Forest biome. The infecting species in the Atlantic Forest was initially believed to be the classical Plasmodium vivax. However, these locations have epidemiological characteristics that contribute to maintaining zoonotic monkey malaria, showing a great adaptation to different hosts, and many years later, it was discovered that almost all human malaria cases in the Atlantic Forest correspond to P. simium zoonosis. This review reported the history of discovering human infections by parasites originating from non-human primates in Brazil. It also examines epidemiology and underscores the need for specific preventive measures in the malaria elimination era. The data gathered so far have demonstrated that several factors enable zoonotic disease transmission in these areas. Given the facilitating ecological aspects involved and the scarce knowledge of the disease by the populations of the non-endemic area, this scenario adds difficulty to the challenge of eliminating malaria in Brazil.
虽然人类疟疾是巴西亚马逊地区的地方病,但在该地区以外的大西洋森林生物群落覆盖区,也经常有自发病例。大西洋森林的感染物种最初被认为是典型的间日疟原虫。然而,这些地方的流行病学特征有助于维持人畜共患的猴疟,显示出对不同宿主的极大适应性。多年后,人们发现大西洋森林中几乎所有的人类疟疾病例都与人畜共患的疟原虫有关。这篇综述报告了在巴西发现源于非人灵长类的寄生虫感染人类的历史。它还研究了流行病学,并强调了在消灭疟疾时代采取具体预防措施的必要性。迄今收集到的数据表明,在这些地区,人畜共患病的传播有多种因素。鉴于所涉及的生态方面的便利因素以及非流行区人口对该疾病的了解甚少,这种情况给在巴西消除疟疾的挑战增加了难度。
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引用次数: 0
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