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Metagenomic survey reveals Volzhskoe tick virus in Hyalomma ticks for the first time in western Europe, North-Eastern Spain. 宏基因组调查首次在西欧、西班牙东北部的透明体蜱中发现伏尔日斯科蜱病毒。
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-04 eCollection Date: 2025-12-01 DOI: 10.1016/j.onehlt.2025.101279
Laura Carrera-Faja, Mariette Viladomat Jasso, Iris Sarmiento, Jordi Manuel Cabrera-Gumbau, Johan Espunyes, Jaime Martínez-Urtaza, Oscar Cabezón

Ticks are reservoirs and vectors of several emerging arboviruses, yet their associated virome remains poorly characterized. Using meta-transcriptomic sequencing, we surveyed Hyalomma marginatum and Rhipicephalus bursa ticks collected from areas with contrasting Crimean-Congo haemorrhagic fever virus (CCHFV) seroprevalence in wild ungulates in north-eastern Spain, a region with no reported CCHF cases in humans. While CCHFV RNA was not detected, we identified Volzhskoe tick virus (VTV), a recently described member of the class Bunyaviricetes, first identified in Russia, in H. marginatum from the Ports de Tortosa i Beseit Natural Park-making its first report of VTV in Western Europe. These findings suggest a broader distribution of VTV and raise important questions about its potential interactions with CCHFV, pathogenicity and host range. Moreover, our approach underscores the value of metagenomic surveillance for improving our understanding of tick-borne virus ecology.

蜱是几种新出现的虫媒病毒的宿主和载体,但其相关病毒体的特征仍然很差。利用meta转录组测序,我们调查了从西班牙东北部野生有蹄类动物中克里米亚-刚果出血热病毒(CCHFV)血清阳性率对比地区采集的边缘透明体和囊状鼻头蜱,该地区未报告人类感染CCHF病例。虽然没有检测到CCHFV RNA,但我们在波尔图尔托尔萨i贝维特自然公园的边缘蜱中发现了Volzhskoe蜱病毒(VTV),这是西欧首次报道的VTV病毒,是最近在俄罗斯首次发现的Bunyaviricetes纲成员。这些发现表明VTV的分布范围更广,并对其与CCHFV的潜在相互作用、致病性和宿主范围提出了重要问题。此外,我们的方法强调了宏基因组监测对提高我们对蜱传病毒生态学的理解的价值。
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引用次数: 0
What are we eating?. Detection of antibiotic resistance mechanisms in frozen chicken nuggets imported from Brazil 我们吃什么?巴西进口冷冻鸡块中抗生素耐药性机制的检测
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-08-21 DOI: 10.1016/j.onehlt.2025.101171
Nicolás F. Cordeiro, Nadia Coppola, Federica Ferreira, Rafael Vignoli, Inés Bado
The rise of antibiotic resistance is a growing challenge, affecting humans, the environment, and animals. Under the One Health framework, this study investigated resistance mechanisms to critically important antibiotics in frozen chicken nuggets imported from Brazil.
Eighty nugget samples were cultured on selective media containing ceftriaxone, ciprofloxacin, or colistin. Isolates were identified using MALDI-TOF, and antibiotic susceptibility was assessed by disk diffusion. Eight samples were also analyzed using shotgun metagenomic sequencing processed through the SqueezeMeta pipeline.
Nineteen Enterobacterales resistant mainly to β-lactams and to a lesser extent, to quinolones and aminoglycosides, were identified. Eight Pseudomonas spp. were recovered, including one P. fulva resistant to colistin. Metagenomics revealed predominant Firmicutes, (Bacillaceae, Lactobacillaceae, and Paenibacillaceae) with low γ-Proteobacteria levels.
Additionally, we detected resistance genes against several antibiotics.
This study highlights the role of imported food in spreading AMR and the value of combining metagenomics with conventional microbiology to strengthen One Health surveillance.
抗生素耐药性的上升是一个日益严峻的挑战,影响着人类、环境和动物。在同一个健康框架下,本研究调查了从巴西进口的冷冻鸡块对重要抗生素的耐药性机制。80个金块样品在含有头孢曲松、环丙沙星或粘菌素的选择性培养基上培养。采用MALDI-TOF对分离菌株进行鉴定,采用纸片扩散法对菌株进行药敏试验。通过SqueezeMeta管道处理的霰弹枪宏基因组测序对8个样本进行了分析。鉴定出19种肠杆菌,主要对β-内酰胺类耐药,其次对喹诺酮类和氨基糖苷类耐药。检出8株假单胞菌,包括1株对粘菌素耐药的富尔瓦假单胞菌。宏基因组学显示,厚壁菌门(Bacillaceae, Lactobacillaceae, Paenibacillaceae)优势,γ-变形菌门水平低。此外,我们还检测到几种抗生素的耐药基因。本研究强调了进口食品在AMR传播中的作用,以及将宏基因组学与传统微生物学相结合加强One Health监测的价值。
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引用次数: 0
First molecular detection of five gastroenteritis viruses in untreated wastewater and impact of seasonal change on their distribution in Cameroon 喀麦隆未经处理废水中五种胃肠炎病毒的首次分子检测及其季节变化对其分布的影响
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-06-13 DOI: 10.1016/j.onehlt.2025.101110
Marie Atsama-Amougou , Dowbiss Djomsi-Meta , Modeste Romuald Ngamaleu , Fredy Brice Nemg Simo , Christophe Lontsi Saha , Nadine Lamare-Boutgam , Celestin Godwe , Martin Maidadi-Foudi , Marcel Tongo , Etienne Mpabuka , Charles Kouanfack , Ahidjo Ayouba

Background

Wastewater-based epidemiology has emerged as a valuable tool for surveilling food- and waterborne disease outbreaks. However, wastewater-based epidemiology remains poorly understood in sub-Saharan Africa. The current study investigated the prevalence of five human enteric viruses and the effect of seasonality on their distribution.

Materials and methods

A twelve-month cross-sectional study was conducted using untreated wastewater. Collected samples were concentrated by polyethylene glycol precipitation and analyzed for molecular detection of Adenovirus, Noroviruses Genotype I, Noroviruses Genotype II, Rotavirus, and Astroviruses using a commercially available Real-Time PCR Bosphore® Gastroenteritis Panel Kit.

Results

Overall, all target viruses were detected, with adenoviruses being the most prevalent at 88.9 % (64/72). Our results revealed the variations in the detection of all these viruses, with detection varying with the change of seasons. Although the difference in detection rates between the rainy and dry seasons did not reach statistical significance in some cases, our results reveal a consistent detection (100 %) across all sampling sites at certain seasons. Adenoviruses exhibited a peak detection period from September to November. Regarding Rotavirus and Norovirus, our findings indicate that they exhibited a peak detection during the short rainy season (March–June), with detection rates of 36.7 % (18/49) and 40.9 % (18/44), respectively.

Conclusion

This study provides the first report on the effect of seasonality on the distribution of enteric viruses in wastewater in Cameroon. Our results highlight the importance of considering seasonal variations when designing public health interventions and demonstrate the usefulness of wastewater-based epidemiology in environmental surveillance.
基于废水的流行病学已成为监测食物和水传播疾病暴发的宝贵工具。然而,在撒哈拉以南非洲,基于废水的流行病学仍然知之甚少。本研究调查了五种人类肠道病毒的流行情况及其季节性对其分布的影响。材料和方法采用未经处理的废水进行了为期12个月的横断面研究。收集的样品经聚乙二醇沉淀浓缩,并使用市售的实时荧光定量PCR Bosphore®肠胃炎检测试剂盒对腺病毒、诺如病毒基因型I、诺如病毒基因型II、轮状病毒和星状病毒进行分子检测。结果所有靶病毒均检出,其中腺病毒检出率最高,为88.9%(64/72)。我们的结果揭示了所有这些病毒的检测变化,随着季节的变化而变化。虽然在某些情况下,雨季和旱季之间的检出率差异没有达到统计学意义,但我们的结果显示,在某些季节,所有采样点的检出率都是一致的(100%)。腺病毒的检出期为9 - 11月。轮状病毒和诺如病毒在短雨季(3 - 6月)出现检出率高峰,检出率分别为36.7%(18/49)和40.9%(18/44)。结论本研究首次报道了季节对喀麦隆废水中肠道病毒分布的影响。我们的研究结果强调了在设计公共卫生干预措施时考虑季节变化的重要性,并证明了基于废水的流行病学在环境监测中的有用性。
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引用次数: 0
Absence of anti-Coxiella burnetii antibodies in animal-hoarding individuals and their dogs living in a highly populated area 居住在人口稠密地区的动物囤积者及其犬缺乏抗伯纳氏克希氏菌抗体
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-08-19 DOI: 10.1016/j.onehlt.2025.101169
Danilo Alves França , Igor Silva Silito , Louise Bach Kmetiuk , Graziela Ribeiro da Cunha , Vivien Midori Morikawa , Helio Langoni , Marcelo Bahia Labruna , Alexander Welker Biondo
This study aimed to investigate the presence of anti-C. burnetii antibodies in animal-hoarding owners and their dogs living in Curitiba, the eighth biggest city in Brazil with 1.8 million habitants. A total of 19 animal-hoarding individuals from 21 households and their 264 dogs were sampled. Serum samples were tested by the indirect immunofluorescence assay (IFA) for IgG antibodies against C. burnetii. Surprisingly, no hoarding owner or dog was seropositive, significantly contrasting (p = 0.0001) with the previous survey in policemen and their working dogs in the same city. The absence of seropositivity herein has indicated that, despite poor living conditions, hoarding dogs may not be exposed to C. burnetii, highlighting the role of environmental and behavioral isolation to the Q fever epidemiology. Thus, One Health approach to C. burnetii should always include concomitant human-animal serosurveys, essential to establish the pathogen cycle in different environments and contributing for effective control strategies.
本研究旨在探讨抗c。库里蒂巴是巴西第八大城市,拥有180万人口。共采集了21户家庭的19名囤积动物个体及其264只狗。采用间接免疫荧光法(IFA)检测血清中抗伯纳蒂胞杆菌IgG抗体。令人惊讶的是,没有囤积主人或狗呈血清阳性,与之前在同一城市对警察及其工作犬的调查形成显著对比(p = 0.0001)。结果表明,尽管生活条件恶劣,但囤积犬可能不会接触伯纳蒂杆菌,这突出了环境和行为隔离对Q热流行病学的作用。因此,“一个健康”方法应对伯纳蒂杆菌应始终包括伴随的人-动物血清调查,这对于确定不同环境中的病原体循环并有助于制定有效的控制策略至关重要。
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引用次数: 0
Real-time malaria detection in the Amazon rainforest via drone-collected eDNA and portable qPCR 通过无人机采集的eDNA和便携式qPCR实时检测亚马逊雨林中的疟疾
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-08-20 DOI: 10.1016/j.onehlt.2025.101167
Yin Cheong Aden Ip , Luca Montemartini , Jia Jin Marc Chang , Andrea Desiderato , Nicolás D. Franco-Sierra , Christian Geckeler , Mailyn Adriana Gonzalez Herrera , Michele Gregorini , Meret Jucker , Steffen Kirchgeorg , Martina Lüthi , Elvira Mächler , Frederik Bendix Thostrup , Guglielmo Murari , Marina Mura , Paola Pulido-Santacruz , Florencia Sangermano , Tobias Schindler , Claus Melvad , Stefano Mintchev , Kristy Deiner
Zoonotic malaria risk at human-wildlife-environment interfaces requires surveillance that integrates signals from reservoirs, vectors and the environment. We coupled a drone-based environmental DNA (eDNA) canopy swabbing approach with portable quantitative PCR (qPCR) to detect Plasmodium DNA in situ during a 24-h field exercise in the Amazon rainforest. Drone-lowered sterile swabs into the canopy, which were then extracted and subjected to a multiplex pan-Plasmodium assay targeting five human-infecting Plasmodium species (limit of detection 0.2 parasites μL−1). Of 12 samples (10 canopy swabs, 2 field blanks; 13 total runs including repeats), one canopy swab amplified in duplicate (Ct = 28.7 and 29.23), while positive controls amplified as expected (Ct = 30.82 and 31.11) and all other environmental samples and blanks were negative. Passive acoustics confirmed co-occurring howler monkeys (Alouatta spp.), a known reservoir, whereas Anopheles mosquitoes were not recovered from concurrently deployed insect canopy traps. The end-to-end workflow, from drone deployment to qPCR diagnostic readout, averaged 1.5 h per assay, without requiring cold-chain logistics. This proof-of-concept demonstrates that intracellular parasite DNA can be recovered from canopy surfaces and read out in real-time, providing upstream, landscape-level intelligence to guide targeted vector surveillance in remote settings. Our approach operationalizes One Health by integrating environmental, wildlife, and vector signals within a single technological platform, representing a paradigm shift from reactive, sector-specific surveillance to proactive, integrated pathogen intelligence across the human-animal-environment interface.
人-野生动物-环境交界处的人畜共患疟疾风险需要综合监测来自宿主、媒介和环境的信号。我们将基于无人机的环境DNA (eDNA)冠层拭子方法与便携式定量PCR (qPCR)相结合,在亚马逊雨林进行了24小时的野外试验,以原位检测疟原虫DNA。无人机将无菌棉签放入冠层,提取棉签并进行多重泛疟原虫检测,检测限为0.2个寄生虫μL−1。在12份样本中(10份冠层拭子,2份野外空白,包括重复运行在内共13次),1份冠层拭子重复扩增(Ct = 28.7和29.23),阳性对照扩增结果与预期一致(Ct = 30.82和31.11),其他所有环境样本和空白均为阴性。被动声学证实了吼叫猴(Alouatta spp.)是一个已知的宿主,而按蚊没有从同时部署的昆虫树冠陷阱中恢复。端到端的工作流程,从无人机部署到qPCR诊断读数,平均每次检测1.5小时,不需要冷链物流。这一概念验证表明,细胞内寄生虫DNA可以从树冠表面恢复并实时读取,为远程环境中的目标载体监测提供上游、景观级情报。我们的方法通过在单一技术平台内整合环境、野生动物和媒介信号来实现“同一个健康”,代表了从被动的、特定部门监测到主动的、跨人-动物-环境界面的综合病原体情报的范式转变。
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引用次数: 0
Avian influenza spillover into poultry: environmental influences and biosecurity protections 禽流感对家禽的外溢:环境影响和生物安全保护
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-08-19 DOI: 10.1016/j.onehlt.2025.101172
Matthew Gonnerman , Jennifer M. Mullinax , Andrew Fox , Kelly A. Patyk , Victoria L. Fields , Mary-Jane McCool , Mia K. Torchetti , Kristina Lantz , Jeffery D. Sullivan , Diann J. Prosser
With the continued spread of highly pathogenic avian influenza (HPAI), understanding the complex dynamics of virus transfer at the wild – agriculture interface is paramount. Spillover events (i.e., virus transfer from wild birds into poultry) are related to proximity to infected wild bird populations and environmental conditions. By accounting for such dynamics, we can take a combined approach to assess the impacts of biosecurity measures implemented at poultry farms while simultaneously accounting for their local risk levels. We implemented a Bayesian joint-likelihood logistic regression for the Continental U.S. comparing models of spatiotemporal risk according to land use, weather, and predicted waterfowl distributions followed by integrating a farm-level case-control questionnaire dataset focused on identifying trends in HPAI spillover risk associated with a farm's biosecurity practices. We found that estimates of waterfowl abundance, along with mean precipitation and temperature during winter, were most correlated with spatiotemporal HPAI risk. Additionally, we identified multiple biosecurity practices associated with reduced risk to HPAI, where the strongest relationships were related to litter decontamination treatments, vehicle wash stations, and avoiding shared dead-bird disposal sites with other farms. This model broadly guides surveillance of HPAI in wild and domestic populations, identifying when and where we are most likely to see increased instances of the virus while also providing insights into how poultry farms can better protect themselves from risk.
随着高致病性禽流感(HPAI)的持续传播,了解病毒在野生-农业界面转移的复杂动态至关重要。溢出事件(即病毒从野生鸟类转移到家禽)与接近受感染的野生鸟类种群和环境条件有关。通过考虑这种动态,我们可以采取综合方法来评估在家禽养殖场实施的生物安全措施的影响,同时考虑其当地的风险水平。我们在美国大陆实施了贝叶斯联合似然逻辑回归,根据土地利用、天气和预测的水禽分布比较了时空风险模型,然后整合了一个农场层面的病例对照问卷数据集,重点确定与农场生物安全实践相关的高致病性禽流感溢出风险趋势。我们发现,水禽丰度以及冬季平均降水和温度与高致病性禽流感的时空风险最相关。此外,我们确定了与降低高致病性禽流感风险相关的多种生物安全措施,其中与垃圾净化处理、洗车站和避免与其他农场共用死鸟处理场有关的关系最强。该模型广泛地指导了对野生和家养人群中高致病性禽流感的监测,确定了我们最有可能看到病毒病例增加的时间和地点,同时也为家禽养殖场如何更好地保护自己免受风险提供了见解。
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引用次数: 0
Infectious disease risk after the October 2024 flash flood in Valencia, Spain: Disaster evolution, strategic scenario analysis, and extrapolative baseline for a One Health assessment 西班牙瓦伦西亚2024年10月山洪暴发后的传染病风险:灾难演变、战略情景分析和同一健康评估的外推基线
IF 4.1 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-05-31 DOI: 10.1016/j.onehlt.2025.101093
Santiago Mas-Coma , Patricio Artigas , Pablo F. Cuervo , Alejandra De Elías-Escribano , M. Cecilia Fantozzi , Giulia Colangeli , Angel Córdoba , Davis J. Marquez-Guzman , Cristina Mas-Bargues , Consuelo Borrás , Patricia Pérez-Pérez , Carlos J. Bethencourt-Estrella , Rubén L. Rodríguez-Expósito , Marco D. Peña-Prunell , Javier Chao-Pellicer , Omar García-Pérez , Angélica T. Domínguez de Barros , Alma García-Ramos , Candela Sirvent-Blanco , Malena Gajeta-Arenas , M. Dolores Bargues
The flash flood caused by a cold front occurred beside Valencia city, Spain, on 29 October 2024, was of unprecedented devastation, catastrophic effects and health impact. A fast response initiative was launched to assess the risks of individual infections and infectious epidemics. This early release of results is meant to ease the diagnostic work by hospitals dealing with infected patients and helping to improving preventive infrastructures and action protocols. Infectious agents were searched for in environmental samples of flood water, mud and soil collected during the first three post-flood weeks, mainly focusing on affected core areas. The evolving scenario was followed covering previous days, disaster and post-flood days, and throughout subsequent weeks. The affected geography was mapped to assess water flow trajectories and confluent multidisciplinary circumstances related to short-, mid- and long-term infection risks. The appropriate survey planning distinguished four independent river/ravine basins, each one comprising four different types of sylvatic, rural-agricultural-farming, urban, and lake surrounding areas. A schematic workflow for analytical procedures is provided. A wide diversity of infectious agents was found, with higher concentration rates in mud than in flood waters. Environmental samples included viruses, bacteria, protozoans, opportunistic free-living amoebae, helminths, and vector groups of mosquitos, sandflies and freshwater snails. Transmission characteristics, human infection sources and pathogenicity are summarized for each pathogen found. Potentially emerging vector-borne diseases are analyzed. Detected microorganisms are of different transmission types, from direct to zoonotic, infection sources from oral to transcutaneous and wound infection, from short- to long-term life cycles, and from permanent to seasonal transmission. Fecal contamination showed high rates and indicated both human and animal sources, with potential reservoirs such as sheep, goats, pigs, equids, dogs and cats. The very large flooded zone requires a multidisciplinary One Health approach. Many lessons should be learned by both professionals in involved disciplines and related decision makers in governments. The large heterogeneity, complexity and far-reaching health consequences of the disaster furnish an extrapolative baseline model which may be useful to face similar catastrophic climate events in the future, expected to occur according to current climate change trends, both throughout the Mediterranean basin and elsewhere.
2024年10月29日,在西班牙瓦伦西亚市附近发生了由冷锋引起的山洪暴发,造成了前所未有的破坏、灾难性后果和健康影响。发起了一项快速反应倡议,以评估个人感染和传染病的风险。提前公布结果是为了减轻处理受感染患者的医院的诊断工作,并有助于改善预防基础设施和行动方案。在洪水后前三周收集的洪水、泥浆和土壤环境样本中寻找感染原,主要集中在受影响的核心地区。我们跟踪了不断变化的情景,包括洪灾前几天、灾后几天以及随后的几周。绘制受影响的地理位置,以评估水流轨迹和与短期、中期和长期感染风险相关的融合多学科环境。适当的调查规划区分了四个独立的河流/峡谷流域,每个流域包括四种不同类型的森林、农村-农业-耕作、城市和湖泊周边地区。给出了分析过程的工作流程图。发现各种各样的传染因子,在泥浆中的浓度比在洪水中的浓度高。环境样本包括病毒、细菌、原生动物、机会性自由生活的变形虫、蠕虫,以及蚊子、白蛉和淡水蜗牛的载体群。对所发现的各种病原体的传播特点、人感染源和致病性进行了综述。分析可能出现的病媒传播疾病。检测到的微生物具有不同的传播类型,从直接传播到人畜共患病,从口腔感染到经皮感染和伤口感染,从短期到长期生命周期,从永久性传播到季节性传播。粪便污染率高,有人源和动物源,潜在的宿主包括绵羊、山羊、猪、马科动物、狗和猫。非常大的洪水区需要多学科的“同一个健康”方法。相关学科的专业人员和政府的相关决策者都应该吸取许多教训。灾难的巨大异质性、复杂性和深远的健康后果提供了一种外推基线模型,可用于今后应对类似的灾难性气候事件,根据目前的气候变化趋势,这些事件预计将在整个地中海盆地和其他地方发生。
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引用次数: 0
Domestic animals and hygiene on infants' risk of contact and exposure to animal faeces in urban neighbourhoods in Kenya: A mixed methods cohort study 肯尼亚城市社区家畜和卫生对婴儿接触和暴露于动物粪便风险的影响:一项混合方法队列研究
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-09-20 DOI: 10.1016/j.onehlt.2025.101217
Innocent K. Tumwebaze , Mark Krysan , Phylis J. Busienei , Sheillah Simiyu , Blessing Mberu , Daniel K. Sewell , Kelly K. Baker
Contact with animals or their faeces could expose infants to zoonotic pathogens associated with diarrheal infections in infants. This study investigated the risk of infants' exposure to domestic animals and their faeces in low- and middle-income urban neighbourhoods in Kenya. A total of 275 caregivers with infants aged 0–12 months from low- income and middle-income neighbourhoods in Nairobi and Kisumu were enrolled in a cohort prospective study and completed the survey. Of these, 136 belonged to low-income and 139 to middle-income neighbourhoods. To ensure balanced recruitment of infants in each neighbourhood, community health promoters who provided a listing of caregivers and their infants aged 0–12 months to form the sampling frame. Recruitment was based on the target for each infant age cluster. Negative Binomial, Zero-Inflated Poisson (ZIP), and Zero-Inflated Negative Binomial (ZINB) regression models were used to test for the rate of infant contact (per hour) with animals and animal faeces and logistic regression for infant exposure to surfaces contaminated with animal faeces. Bayes factors were used for model selection. Overall, 27.9 % of the studied low-income neighbourhood households and 30.9 % of those in middle-income neighbourhoods owned domestic animals. Infants in households who owned cats had a 109 % increase (95 %CI = 59 %, 173 %) in contact compared to non-cat owning households. There was a 22 % decrease (95 %CI = 7 %, 42 %) in infant contact with non-feline animals compared to households that did not own them. The rate of contact with animals, animal faeces, or surfaces polluted by animal faeces increased with age. Full penning of household owned animals reduced the rate of infant contact with animal faeces by 93 % (95 %CI = 16 %, 99.7 %), compared to no penning, and reduced the odds of infant contact with a contaminated surface by 97 % (95 %CI = 42 %–99.9 %), compared to no penning. Self-reported animal faeces disposal practices were not significantly associated with a reduced rate of infant contact with animal faeces or touching surfaces contaminated by animal faeces. The study findings infants in households that owned cats have an increased contact with them while full penning of domestic animals is associated with reduced risk of exposure to animal faeces or contaminated surfaces.
与动物或其粪便接触可能使婴儿暴露于与婴儿腹泻感染相关的人畜共患病原体。本研究调查了肯尼亚中低收入城市社区婴儿接触家畜及其粪便的风险。来自内罗毕和基苏木低收入和中等收入社区的275名照顾0-12个月婴儿的护理人员参加了一项队列前瞻性研究并完成了调查。其中,136个属于低收入社区,139个属于中等收入社区。为确保均衡地招募每个社区的婴儿,社区卫生促进者提供了一份照料者及其0-12个月婴儿的名单,以形成抽样框架。招募是基于每个婴儿年龄组的目标。使用负二项、零膨胀泊松(ZIP)和零膨胀负二项(ZINB)回归模型来检验婴儿(每小时)与动物和动物粪便接触的比率,并对婴儿接触被动物粪便污染的表面进行logistic回归。采用贝叶斯因子进行模型选择。总体而言,27.9%的低收入社区家庭和30.9%的中等收入社区家庭拥有家畜。与不养猫的家庭相比,养猫家庭的婴儿接触猫的几率增加了109% (95% CI = 59%, 173%)。与没有养猫的家庭相比,婴儿接触非猫动物的比例降低了22% (95% CI = 7%, 42%)。与动物、动物粪便或被动物粪便污染的表面接触的比率随着年龄的增长而增加。与不围圈相比,家庭饲养的动物完全围圈使婴儿接触动物粪便的几率降低了93% (95% CI = 16%, 99.7%),与不围圈相比,使婴儿接触污染表面的几率降低了97% (95% CI = 42% - 99.9%)。自我报告的动物粪便处理方法与降低婴儿接触动物粪便或接触被动物粪便污染的表面的比率没有显著关联。研究发现,养猫家庭的婴儿与猫的接触增加,而完全圈养家畜与接触动物粪便或受污染表面的风险降低有关。
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引用次数: 0
Apparent prevalence, lesion distribution and risk factors of bovine tuberculosis in cattle slaughtered at the Shashemene and Arsi Negelle municipal abattoirs, Ethiopia 埃塞俄比亚Shashemene和Arsi Negelle市政屠宰场屠宰的牛中牛结核病的明显患病率、病变分布和危险因素
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-09-15 DOI: 10.1016/j.onehlt.2025.101200
Mohammed Desu , Nigussu Fasil , Rahmeto Abebe
Bovine tuberculosis (bTB) is a chronic infectious disease caused by Mycobacterium bovis, primarily affecting cattle and presenting a zoonotic risk to humans. It adversely impacts milk and meat production, ultimately jeopardizing food security and livelihoods, particularly in developing countries like Ethiopia, where the disease is endemic. This cross-sectional study, conducted from January to December 2023, aimed to estimate the apparent prevalence of bTB, assess the distribution of lesions, and identify associated risk factors among cattle slaughtered at two municipal abattoirs. The study systematically examined the carcasses of 648 cattle. The results revealed an overall apparent prevalence of bTB of 6.2 % (95 % CI: 4.4 % - 8.3 %), with no significant difference observed between the two abattoirs (p > 0.05). The highest proportion of TB lesions (48.8 %) was identified in the lungs and associated lymph nodes, followed by the mesenteric lymph nodes and livers (29.3 %), and the lymph nodes of the head (21.9 %). Multivariable logistic regression model identified breed and body condition scores as significant risk factors for the apparent prevalence of bTB. Specifically, crossbred cattle were found to be 2.8 times more likely to exhibit TB lesions than Zebus. Additionally, cattle in poor body condition were 8.4 times more likely to show TB lesions compared with those in good condition. These findings highlight the widespread occurrence of bTB among cattle, particularly in crossbred and poorly conditioned animals, with both respiratory and gastrointestinal tract involvement in the disease's spread. The study underscores the urgent need for enhanced control and prevention strategies against bTB in the region.
牛结核病(bTB)是一种由牛分枝杆菌引起的慢性传染病,主要影响牛,对人类具有人畜共患风险。它对牛奶和肉类生产产生不利影响,最终危及粮食安全和生计,特别是在该病流行的埃塞俄比亚等发展中国家。这项横断面研究于2023年1月至12月进行,旨在估计在两个城市屠宰场屠宰的牛中bTB的表观患病率,评估病变分布,并确定相关危险因素。这项研究系统地检查了648头牛的尸体。结果显示,bTB的总体表观患病率为6.2% (95% CI: 4.4% - 8.3%),两个屠宰场之间没有观察到显著差异(p > 0.05)。肺部及相关淋巴结的结核病变比例最高(48.8%),其次是肠系膜淋巴结和肝脏(29.3%),头部淋巴结(21.9%)。多变量logistic回归模型确定品种和身体状况评分是bTB明显患病率的重要危险因素。具体来说,杂交牛患结核病的可能性是Zebus的2.8倍。此外,与身体状况良好的牛相比,身体状况不佳的牛出现结核病病变的可能性高出8.4倍。这些发现突出表明,疯牛病在牛中广泛发生,特别是在杂交和条件差的牛中,呼吸道和胃肠道都参与了疾病的传播。该研究强调迫切需要在该区域加强结核控制和预防战略。
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引用次数: 0
Outbreak of highly pathogenic avian influenza a(H5N1) among house cats: A case series involving oseltamivir treatment 在家猫中爆发高致病性甲型H5N1禽流感:涉及奥司他韦治疗的一系列病例
IF 4.5 2区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2025-12-01 Epub Date: 2025-09-16 DOI: 10.1016/j.onehlt.2025.101211
Jacob F. Gomez , Ian G. Bemis , Ismaila Shittu , Gregory C. Gray , Kristen K. Coleman
We present a highly pathogenic avian influenza A(H5N1) outbreak among four domestic cats from the same household within close proximity to a dairy farm in Tulare, California – the epicenter of the H5N1 dairy cattle outbreaks in California, USA. We demonstrate that with early supportive care and treatment with oseltamivir, H5N1 is survivable in domestic cats, and that survivor cats may maintain high titers of neutralizing antibodies against H5N1 at least 3–4 months post recovery.
我们报告了一起高致病性甲型H5N1禽流感疫情,发生在加利福尼亚州图拉雷(美国加利福尼亚州H5N1奶牛疫情的中心)一个奶牛场附近同一家庭的4只家猫中。我们证明,通过早期支持性护理和奥司他韦治疗,H5N1在家猫中是存活的,存活的猫在康复后至少3-4个月可以保持高滴度的H5N1中和抗体。
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引用次数: 0
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One Health
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