dog-mediated rabies

狗介导的狂犬病
  • 文章类型: Journal Article
    在马达加斯加,狂犬病是地方病和应报告的疾病。这项混合研究的目的是了解马达加斯加当前狂犬病监测系统中兽医卫生官员(VHO)面临的挑战。
    从4月中旬到2021年7月底进行了一项调查,在此期间,所有正式上市的VHO(N=150)至少两次通过电话联系。参与者,马达加斯加22个地区的代表,根据半结构化问卷进行电话采访(1)他们在活动领域的狂犬病流行病学知识,(2)在其工作区域内发生的人和动物狂犬病及其受影响的物种,(3)可能影响狂犬病监测的因素,取决于(a)其活动和手术区域,(b)当地社区的社会文化方面,和(c)动物狂犬病监察的一般组织。
    大多数(80/90)的VHO宣布在其作为VHO的工作期间,已被告知其活动区域中至少有一例怀疑或确认的人和/或动物狂犬病病例:至少每月一次,其中11个,40人每年至少一次,29人的频率未定。有几个障碍阻碍了对狂犬病的监测,导致漏报。缺乏接触可疑动物的资金,收集,按照生物安全措施和冷链包装和运输样品,被认为是监视的主要障碍。第二个障碍是社会文化:在许多大型沿海地区,狗是禁忌,如果他们对待狗,VHO害怕被社区拒绝。
    虽然一般人群需要有关马达加斯加狂犬病状况以及在咬伤时如何进行的信息,兽医和决策者需要充分意识到狂犬病监测的循证方法,预防和控制。人类和动物卫生部门之间的沟通应该得到改善。政治家们需要被说服资金在马达加斯加消灭狂犬病的重要性。收养,2023年初,国家狂犬病控制战略计划是朝这个方向迈出的第一步。
    UNASSIGNED: In Madagascar, rabies is endemic and a notifiable disease. The objective of this mixed study was to understand the challenges faced by the Veterinary Health Officers (VHOs) in the current rabies surveillance system in Madagascar.
    UNASSIGNED: A survey was conducted from mid-April to the end of July 2021 during which all officially-listed VHOs (N = 150) were contacted by phone at least twice. Participants, representative of the 22 regions of Madagascar, were interviewed by phone based on a semi-structured questionnaire on (1) their knowledge of rabies epidemiology in their area of activities, (2) the occurrence of human and animal rabies and the species affected in the region where they work, (3) the factors that might influence rabies surveillance depending on (a) their activities and area of operation, (b) the socio-cultural aspects of local communities, and (c) the general organization of animal rabies surveillance.
    UNASSIGNED: The majority (80/90) of VHOs declared having been informed of at least one suspected or confirmed case of human and/or animal rabies in their area of activity during their work as VHOs: at least once a month for 11 of them, at least once a year for 40 and with undetermined frequency for 29. Several obstacles hinder the surveillance of rabies resulting in under-reporting. The lack of funds to access suspect animals, collect, pack and ship samples in compliance with biosecurity measures and the cold chain, was mentioned as a major obstacle to surveillance. The second barrier is socio-cultural: in many large coastal regions, dogs are taboo and VHOs fear rejection by the community if they treat dogs.
    UNASSIGNED: While the general population requires information on the rabies situation in Madagascar and on how to proceed in the event of a bite, veterinarians and decision-makers need to be fully aware of an evidence-based approach to rabies surveillance, prevention and control. Communication between the human and animal health sectors should be improved. Politicians need to be persuaded of the importance of funding to eliminate rabies in Madagascar. The adoption, in early 2023, of a national strategic plan for rabies control is a first step in this direction.
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  • 文章类型: Editorial
    在全球狂犬病病例上升之后,特别是在COVID-19大流行之后,现在是时候更好地了解情况,并提出技术上合理和合理的对策。本文正是在这个视角下的尝试。虽然是一种严重的人畜共患病毒性疾病,狂犬病是可以预防的。医学法律上,这种疾病被归类为狂暴狂犬病和麻痹性狂犬病。四个世界机构,即,世界卫生组织(WHO)联合国粮食及农业组织(粮农组织)世界动物卫生组织(OIE)全球狂犬病控制联盟(GARC)批准建立一个全球支持系统,以在“零30”框架下消除狗介导的狂犬病造成的人类死亡。该框架要求扩大狗的疫苗接种范围,以降低人类狂犬病的风险。流浪狗变得咄咄逼人,主要是因为它们在大流行封锁期间食物短缺。由于许多被收养的流浪狗在大流行后被抛弃,减少的人与狗的相互作用增加了狗之间的攻击性。因此,“狗咬”案件上升,印度和其他地方的狂犬病病例和狗咬伤导致的死亡突然激增。威胁“30年前零”计划无疑是一个公共卫生问题。通过不可逆的导管闭塞技术和指导下的精子可逆抑制(RISUG)对流浪犬进行灭菌是控制狂犬病的其他建议干预措施。重要的是,像狐狸这样的野生动物,浣熊,臭鼬,蝙蝠也可能是狂犬病。4种世卫组织预先合格的狂犬病人用疫苗中,有3种作为暴露后预防皮内给药,而肌内注射的更受欢迎。即使在设定的时间范围内可能无法实现\'30之前的零\',现在是全球机构采取协调一致和有计划的战略的时候了,以遏制全球狂犬病病例的上升,并更好地管理这种疾病。“一个健康”模式似乎是一个合理的指导方针,也是实现这一目标的最终对策。
    In the wake of rising rabies cases worldwide, especially after the COVID-19 pandemic, it is time to understand the scenario better and suggest technically sound and plausible countermeasures. This article is an attempt at this perspective. Although a critical zoonotic viral disease, rabies is preventable. Medico-legally, the ailment is classified as furious rabies and paralytic rabies. The four world bodies, namely, the World Health Organisation (WHO), the Food and Agriculture Organisation (FAO), the World Organisation for Animal Health (OIE), and the Global Alliance for Rabies Control (GARC) endorsed framing a global support system to eradicate human death from dog-mediated rabies under the \'Zero by 30\' framework. The framework calls for extending the vaccination of dogs to reduce the risk of human rabies. Stray dogs became aggressive primarily due to their food shortage during the pandemic lockdown. As many adopted stray dogs were disowned post-pandemic, decreased human-dog interactions increased the aggressiveness among dogs. As a result, \'dog-bite\' cases rose, with a sudden spike in rabies cases and dog-bite-induced deaths in India and elsewhere. Jeopardising the \'Zero by 30\' plan is certainly a public health concern. Stray dog sterilisation through the irreversible ductal occlusion technique and reversible inhibition of sperm under guidance (RISUG) are other suggested interventions to control rabies. Importantly, wildlife like foxes, raccoons, skunks, and bats could also be rabid. Three out of the four WHO-pre-qualified human vaccines against rabies are intradermally administered as post-exposure prophylaxis, while the intramuscular one is more popular. Even though \'Zero by 30\' may not be achieved within the set timeframe, it is time for a concerted and planned strategy by global agencies to curb the globally rising rabies cases and manage the disease better. The \'One Health\' model seems to be a plausible guideline and the ultimate countermeasure to achieve this.
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  • 文章类型: Journal Article
    尽管国家努力淘汰,狗介导的狂犬病在菲律宾仍然很流行。通过广泛建立动物咬伤治疗中心(ABTC)免费提供暴露后预防(PEP),改善了可及性;然而,由此导致的PEP需求激增是不可持续的,人类狂犬病死亡仍在继续。狗的疫苗接种覆盖率仍然不足,目前尚不清楚监测是否有效。
    这里,我们使用综合咬伤病例管理(IBCM)在东方明多洛省收集了3年(2020-2022年)的强化狂犬病监测数据.适应概率决策树模型,我们估计了狂犬病的负担,评估的监测性能,分析了当前全省狂犬病防控实践的成本和效益。
    在东方民都洛省,接受PEP的咬伤患者的发生率很高(1,246/100,000人/年),尽管<3%的患者被认为是狂犬病暴露的高风险(24/100,000人/年)。使用决策树模型,我们估计,大约73.8%的可能狂犬病暴露患者寻求PEP(95%预测间隔,PrI:59.4%-81.1%),并且常规监测证实<2%的循环动物狂犬病病例,而IBCM导致病例检测增加近四倍。此外,我们估计,该省每年平均有560只(95%的PrI217-1090只)狗可能患上狂犬病,相当于每年每1000只狗3-5例。平均而言,PEP每年在东方Mindoro避免20至43人死亡,每年费用为582,110美元(即,每人51.44美元)或避免每次死亡20,190美元(95%PrI$11,565-79,400)。
    虽然菲律宾目前的PEP供应实践已经改善了访问,大部分暴露于狂犬病的人(>26%,95%PrI18.8%-40.1%)仍未寻求医疗保健。整合部门间监测系统,例如IBCM,如果实施得当,纳入国家政策可以大大提高案件检测,进一步的好处扩展到PEP管理的指导,潜在地减少PEP的不必要支出,和态势感知,通过大规模狗疫苗接种来控制狂犬病。
    UNASSIGNED: Despite national elimination efforts, dog-mediated rabies remains endemic in the Philippines. Free provision of post-exposure prophylaxis (PEP) through the widespread establishment of Animal Bite Treatment Centers (ABTCs) has improved accessibility; however, the resulting upsurge in PEP demand is not sustainable, and human rabies deaths continue. Dog vaccination coverage also remains inadequate, and it is unclear whether surveillance is effective.
    UNASSIGNED: Here, we used Integrated Bite Case Management (IBCM) to collect enhanced rabies surveillance data in Oriental Mindoro Province over a 3-year period (2020-2022). Adapting a probabilistic decision tree model, we estimated the burden of rabies, evaluated surveillance performance, and analyzed the costs and benefits of current rabies prevention and control practices in the province.
    UNASSIGNED: The incidence of bite patients receiving PEP was high in Oriental Mindoro Province (1,246/100,000 persons/year), though < 3% of presenting patients were deemed high-risk for rabies exposure (24/100,000 persons/year). Using a decision tree model, we estimated that around 73.8% of probable rabies-exposed patients sought PEP (95% Prediction Interval, PrI: 59.4%-81.1%) and that routine surveillance confirmed < 2% of circulating animal rabies cases, whereas IBCM resulted in a nearly fourfold increase in case detection. Furthermore, we estimated that an average of 560 (95% PrI 217-1,090) dogs may develop rabies annually in the province, equating to 3-5 cases per 1,000 dogs per year. On average, 20 to 43 human deaths were averted by PEP each year in Oriental Mindoro at an annual cost of $582,110 USD (i.e., $51.44 USD per person) or $20,190 USD (95% PrI $11,565-79,400) per death averted.
    UNASSIGNED: While current practices for PEP provisioning in the Philippines have improved access, a large proportion of people exposed to rabies (> 26%, 95% PrI 18.8%-40.1%) are still not seeking healthcare. Integrating an intersectoral surveillance system, such as IBCM, into national policy could greatly improve case detection if well implemented, with further benefits extending to guidance for PEP administration, potentially reducing unnecessary expenditure on PEP, and situational awareness to inform control of rabies through mass dog vaccination.
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  • 文章类型: Journal Article
    狂犬病是一种被忽视的疾病,主要是由于大多数国家/地区的监测和诊断能力有限,导致检测不良。因此,监测和评估国家的能力有限,区域,以及实现世卫组织到2030年消除人类狂犬病死亡的目标的全球进展。需要一种低成本的,在流行国家估计狂犬病负担和消除能力的易于复制的方法。
    公开经济,环境,政治,社会,公共卫生,和一项健康指标进行了评估,以确定与国家一级狂犬病负担估计具有强相关性的变量。开发了一种新的指数来估计狗介导的狂犬病病毒变体(DMRVV)流行国家的基础设施狂犬病消除能力和年度病例负担。
    具有优越解释价值的五个国家级指标代表了新颖的“STOP-R指数:”(1)识字率,(2)婴儿死亡率,(3)电力接入,(四)政治稳定,(5)自然灾害的存在/严重程度。根据STOP-R指数,据估计,2022年DMRVV流行国家将发生40,111例(95%CI25,854-74,344)全球狂犬病死亡人数,预计到2030年将减少至32,349例(95%CI21,110-57,019)。
    STOP-R指数提供了一种独特的手段来解决数据差距并监测消除狗介导的人类狂犬病死亡的进展。此处显示的结果表明,狂犬病计划以外的因素会影响狂犬病消除的成功,现在有可能根据国家基础设施确定在预期的狂犬病控制和消除进展方面超过或滞后的国家。
    UNASSIGNED: Rabies is a neglected disease, primarily due to poor detection stemming from limited surveillance and diagnostic capabilities in most countries. As a result, there is limited ability to monitor and evaluate country, regional, and global progress towards the WHO goal of eliminating human rabies deaths by 2030. There is a need for a low-cost, readily reproducible method of estimating rabies burden and elimination capacity in endemic countries.
    UNASSIGNED: Publicly available economic, environmental, political, social, public health, and One Health indicators were evaluated to identify variables with strong correlation to country-level rabies burden estimates. A novel index was developed to estimate infrastructural rabies elimination capacity and annual case-burden for dog-mediated rabies virus variant (DMRVV) endemic countries.
    UNASSIGNED: Five country-level indicators with superior explanatory value represent the novel \"STOP-R index:\" (1) literacy rate, (2) infant mortality rate, (3) electricity access, (4) political stability, and (5) presence/severity of natural hazards. Based on the STOP-R index, 40,111 (95% CI 25,854-74,344) global human rabies deaths are estimated to occur in 2022 among DMRVV-endemic countries and are projected to decrease to 32,349 (95% CI 21,110-57,019) in 2030.
    UNASSIGNED: The STOP-R index offers a unique means of addressing the data gap and monitoring progress towards eliminating dog-mediated human rabies deaths. Results presented here suggest that factors external to rabies programs influence the successes of rabies elimination, and it is now possible to identify countries exceeding or lagging in expected rabies control and elimination progress based on country infrastructure.
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  • 文章类型: Journal Article
    作为“零到30”战略的一部分,到2030年结束人类死于狗介导的狂犬病,国际组织推荐了一个包括综合咬伤病例管理(IBCM)的单一健康框架。然而,对IBCM在实践中的实施知之甚少。本研究旨在了解IBCM是如何概念化的,探索IBCM是如何在不同的背景下运作的,以及实施的障碍和促进者。对17名从业者和研究人员进行了半结构化访谈,国家,以及非洲各地的当地专业知识,亚洲,和美洲。使用归纳法和演绎法进行了主题分析。确定了四个主要主题:1)IBCM的利益相关者和从业人员概念化及其在狂犬病消除中的作用;2)IBCM在不同情况下运作方式的差异;3)IBCM实施与风险评估有关的障碍和促进者,PEP供应,动物调查,一次健康合作,和数据报告;4)COVID-19大流行对IBCM计划的影响。这项研究强调了专家对IBCM概念化的多样性,及其可操作性。各种观点表明,在卫生系统内组织IBCM有不同的方法,这不是一种放之四海而皆准的方法。可持续性问题仍然是执行工作面临的最大挑战。每个位置的上下文特征影响了IBCM的交付和潜在影响。程序跨越高度地方性环境,对患者收取的PEP的访问有限,与免费PEP政策和敏感性相关的患者负荷较低的地方性设置。在实践中,IBCM是为满足当地情况和狂犬病控制水平的需求而量身定制的。因此,专家的经验不一定会在不同的环境中翻译,影响对功能的感知,动机,和IBCM的实施。为了设计和实施未来和当前的计划,应向接诊病人的卫生工作者提供有关评估咬人动物狂犬病病史和体征的指导。研究结果提供了有关IBCM实施的见解,以及它如何支持旨在通过30实现零目标的计划。
    As part of the \'Zero by 30\' strategy to end human deaths from dog-mediated rabies by 2030, international organizations recommend a One Health framework that includes Integrated Bite Case Management (IBCM). However, little is understood about the implementation of IBCM in practice. This study aims to understand how IBCM is conceptualized, exploring how IBCM has been operationalized in different contexts, as well as barriers and facilitators to implementation. Semi-structured interviews were conducted with seventeen practitioners and researchers with international, national, and local expertise across Africa, Asia, and the Americas. Thematic analysis was undertaken using both inductive and deductive approaches. Four main themes were identified: 1) stakeholders\' and practitioners\' conceptualization of IBCM and its role in rabies elimination; 2) variation in how IBCM operates across different contexts; 3) barriers and facilitators of IBCM implementation in relation to risk assessment, PEP provisioning, animal investigation, One Health collaboration, and data reporting; and 4) the impact of the COVID-19 pandemic on IBCM programs. This study highlights the diversity within experts\' conceptualization of IBCM, and its operationalization. The range of perspectives revealed that there are different ways of organizing IBCM within health systems and it is not a one-size-fits-all approach. The issue of sustainability remains the greatest challenge to implementation. Contextual features of each location influenced the delivery and the potential impact of IBCM. Programs spanned from highly endemic settings with limited access to PEP charged to the patient, to low endemicity settings with a large patient load associated with free PEP policies and sensitization. In practice, IBCM was tailored to meet the demands of the local context and level of rabies control. Thus, experts\' experiences did not necessarily translate across contexts, affecting perceptions about the function, motivation for, and implementation of IBCM. To design and implement future and current programs, guidance should be provided for health workers receiving patients on assessing the history and signs of rabies in the biting animal. The study findings provide insights in relation to implementation of IBCM and how it can support programs aiming to reach the Zero by 30 goal.
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  • 文章类型: Journal Article
    这项研究旨在评估88个狂犬病流行国家的狗介导狂犬病控制的当前进展和政治承诺水平,并为到2030年消除狗介导狂犬病提供进一步建议。使用国际组织和非政府组织网站上的数据和相关法规进行了相关研究。总的来说,狂犬病尚未被视为优先疾病,只有五分之一的国家和地区制定了狂犬病控制和预防国家战略计划。同样,狗介导的狂犬病控制指标的得分,如狗疫苗接种率和每1000人的暴露后预防数量仍然最低.在狗介导的狂犬病控制准备和消除进展方面也存在区域差异。特别是,泛非狂犬病控制网络(PARACON)成员国需要做出更多努力。为了实现到2030年全球犬介导零狂犬病的目标,应在世界所有狂犬病流行地区加强和推广犬介导狂犬病控制活动,如犬只疫苗接种和强有力的政治承诺。
    This study aimed to assess the current progress of dog-mediated rabies control and the level of political commitment among 88 rabies-endemic countries and to provide further recommendations for the elimination of dog-mediated rabies by 2030. A correlational study was conducted using data and relevant regulations from the websites of international organizations and NGOs. In general, rabies was yet to be considered a priority disease and only one out of five countries and territories has prepared a national strategic plan for rabies control and prevention. Likewise, scores of dog-mediated rabies control indicators such as dog vaccination rate and the number of post-exposure prophylaxis per 1000 people remained minimal. There were also regional differences in preparation for dog-mediated rabies control and progress towards elimination. In particular, more efforts are needed for Pan-African Rabies Control Network (PARACON) member countries. In order to meet the goal of global dog-mediated zero rabies by 2030, both dog-mediated rabies control activities such as dog vaccination and strong political commitment should be strengthened and promoted in all rabies-endemic regions of the world.
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  • 文章类型: Journal Article
    深深扎根于当地社会,文化,和宗教环境,在许多狂犬病流行国家,传统治疗是狗咬伤和狂犬病管理的一部分。信仰愈合,通常包括更全面的健康方法,包括身体,心理和社会层面,在狂犬病的背景下是罕见的。在古吉拉特邦,印度西部,印度教女神HadkaiMata被低种姓社区崇拜为狂犬病之母,以防狗咬人或牲畜。这种信念可能会影响人们对狂犬病预防的态度和行为,但从未被调查过。通过对HadkaiMata寺庙的治疗师和工作人员的31次深入采访,本文探讨了在这些礼拜和治疗场所建立和共享的关于狗和人类狂犬病的知识系统。分析了定性和定量数据,以寻找与最近启动的《消除狗介导的狂犬病国家行动计划》的趋同和分歧。结果表明,虽然人类狂犬病作为一种社会疾病的病因通常被解释为女神希望纠正行为不端的人并恢复积极的人际关系,人们对导致狂犬病作为一种身体疾病的感染的生物学过程有所了解。HadkaiMata被认为可以治愈狂犬病,如果她的患者经历必要的道德成长过程。尽管传统的暴露后预防本身并不反对,它通常被首先寻求传统治疗的患者推迟。人们对大规模狗疫苗接种表示了一些不情愿,因为这被视为对女神如何控制狗的干扰,通过激怒他们——从而用狂犬病感染他们——并让他们咬坏人。解决这些文化观念对于在该地区有效控制犬狂犬病可能至关重要。这项研究强调了多学科方法在控制和消除狂犬病方面的价值,以及其他人畜共患病。这包括理解人类与动物的不同文化和宗教介导的方式的重要性;寻找汇合点和相互理解,根据哪个上下文定制,语言准确,当地可接受的,可以设计出可行和有效的策略。
    Deeply embedded in local social, cultural, and religious settings, traditional healing is part of dog bite and rabies management in many rabies endemic countries. Faith healing, which usually encompasses a more holistic approach to health including physical, mental and social dimensions, is rare in the context of rabies. In Gujarat, Western India, the Hindu goddess Hadkai Mata is worshiped by low-caste communities as the Mother of Rabies in the event of a dog bite to a person or their livestock. This belief might influence people\'s attitudes and behaviors toward rabies prevention but has never been investigated. Through 31 in-depth interviews with healers and staff of Hadkai Mata temples, this paper explores the system of knowledge around dog and human rabies that is built and shared in these places of worship and healing. Qualitative and quantitative data were analyzed looking for convergences and divergences with the recently launched National Action Plan for dog-mediated Rabies Elimination. Results suggest that while the etiology of human rabies as a social illness is usually explained as the goddess\'s wish to correct misbehaving people and restore positive interpersonal relations, there is some appreciation for the biological processes of infection that lead to rabies as a physical disease. Hadkai Mata is believed to cure rabies if her patients undergo the necessary process of moral growth. Although conventional post-exposure prophylaxis is not opposed per se, it is often delayed by patients who seek traditional treatment first. Some reluctance was expressed toward mass dog vaccination because it is seen as an interference in how the goddess controls dogs, by enraging them-hence infecting them with rabies-and sending them to bite wrongdoers. Addressing these cultural perceptions is likely to be critical in achieving effective control of dog rabies in this region. The study highlights the value of multidisciplinary approaches in the control and elimination of rabies, as well as other zoonoses. This includes the importance of understanding different culturally- and religiously- mediated ways in which humans relate to animals; and looking for points of convergence and mutual understanding, upon which context-tailored, linguistically-accurate, locally acceptable, feasible and effective strategies can be designed.
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  • 文章类型: Journal Article
    了解不同物种在多宿主病原体传播中的作用,比如狂犬病病毒,对于有效的控制策略至关重要。在撒哈拉以南非洲的大多数家犬中,犬犬被认为是狂犬病的水库,但是野生动物的作用一直存在争议。在这里,我们探讨了狂犬病在坦桑尼亚东南部的多宿主传播动态。在2011年1月至2019年7月之间,在林迪和姆特瓦拉地区收集了可能的狂犬病病例数据。向医疗机构就诊的动物咬伤患者的医院记录被用作动物接触者追踪的哨兵。时间,可能的狂犬病动物的位置和种类被用来重建传播树,以推断谁感染了谁以及物种内和物种间传播的相对频率。在研究期间,确定了688例可能的人类狂犬病暴露,导致47人死亡。在这些曝光中,389只来自家犬(56.5%),262只来自jack狼(38.1%)。在同一时期,追踪了549例可能的动物狂犬病病例:家犬303例(55.2%)和jack狼221例(40.3%),其余的在家猫和其他野生动物物种中。尽管狗对狗的传播是最常见的推断(40.5%的传播事件),三分之一的推断事件涉及野生动物到野生动物的传播(32.6%),证据表明,在狼种群中存在一些持续的传播链。在研究的前6年中,人类和动物中可能的狂犬病病例的稳步下降与广泛的家犬疫苗接种的实施相吻合。在这个程序失效之后,在最北端的地区之一,狗狂犬病病例开始增加。合成与应用。在坦桑尼亚东南部,尽管狂犬病在野生动物中的发病率相对较高,并且有野生动物向野生动物传播的证据,家犬仍然是感染的关键。持续的狗疫苗接种以及改善的监测将使人们更全面地了解野生动物在维持该地区传播中的作用。尽管如此,狗疫苗接种明显抑制了家犬和野生动物种群的狂犬病,降低公共健康和保护风险,如果持续,有可能从这个地区消灭狂犬病.
    Understanding the role of different species in the transmission of multi-host pathogens, such as rabies virus, is vital for effective control strategies. Across most of sub-Saharan Africa domestic dogs Canis familiaris are considered the reservoir for rabies, but the role of wildlife has been long debated. Here we explore the multi-host transmission dynamics of rabies across south-east Tanzania.Between January 2011 and July 2019, data on probable rabies cases were collected in the regions of Lindi and Mtwara. Hospital records of animal-bite patients presenting to healthcare facilities were used as sentinels for animal contact tracing. The timing, location and species of probable rabid animals were used to reconstruct transmission trees to infer who infected whom and the relative frequencies of within- and between-species transmission.During the study, 688 probable human rabies exposures were identified, resulting in 47 deaths. Of these exposures, 389 were from domestic dogs (56.5%) and 262 from jackals (38.1%). Over the same period, 549 probable animal rabies cases were traced: 303 in domestic dogs (55.2%) and 221 in jackals (40.3%), with the remainder in domestic cats and other wildlife species.Although dog-to-dog transmission was most commonly inferred (40.5% of transmission events), a third of inferred events involved wildlife-to-wildlife transmission (32.6%), and evidence suggested some sustained transmission chains within jackal populations.A steady decline in probable rabies cases in both humans and animals coincided with the implementation of widespread domestic dog vaccination during the first 6 years of the study. Following the lapse of this program, dog rabies cases began to increase in one of the northernmost districts. Synthesis and applications. In south-east Tanzania, despite a relatively high incidence of rabies in wildlife and evidence of wildlife-to-wildlife transmission, domestic dogs remain essential to the reservoir of infection. Continued dog vaccination alongside improved surveillance would allow a fuller understanding of the role of wildlife in maintaining transmission in this area. Nonetheless, dog vaccination clearly suppressed rabies in both domestic dog and wildlife populations, reducing both public health and conservation risks and, if sustained, has potential to eliminate rabies from this region.
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  • 文章类型: Journal Article
    背景:耐热疫苗极大地提高了消除天花等传染病的大规模计划的范围和影响,脊髓灰质炎,和牛瘟。2015年的一项研究表明,在30°C下实验储存3个月后,Nobivac®狂犬病疫苗的效力没有受到影响。疫苗在更自然的条件下储存后是否仍然有效,波动的温度条件仍然未知。我们进行了一项随机对照非劣效性试验,以比较在冷链条件下储存的剂量与在波动的温度条件下储存在本地制造的被动冷却装置(“Zeepot”)中的剂量疫苗接种后狗的血清学反应。材料和方法:将Nobivac®狂犬病疫苗在冷链条件下或在Zeepot内储存2个月。每3小时记录每日环境温度和Zeepot内的温度。储存后,412只家犬被随机分配接受冷链或Zeepot储存的Nobivac®狂犬病疫苗。收集基线和疫苗接种后第28天的血液样品。使用荧光抗体病毒中和测定的血清学分析以0.5IU/ml的阈值进行以确定血清转化。此外,狗身体状况评分的影响,性别,并检查血清转换的年龄。结果:使用储存在Zeepot内的Nobivac®狂犬病疫苗接种的狗的血清学应答不逊于使用冷链储存疫苗接种的狗的应答(z=1.1,df=313,p值=0.25)。的确,疫苗接种后28天,冷链组几何平均滴度为1.8和2.0IU/ml,与非冷链存储,分别。此外,各臂血清转换的狗的百分比几乎相同(85%)。身体状况评分(O.R.2.2,95%CI:1.1-5.1)与血清转换之间呈正线性趋势,这表明状况不佳的狗可能不会像预期的那样对疫苗接种产生反应。结论:我们的研究表明,Nobivac®狂犬病疫苗的效力在Zeepot内升高的波动温度下储存后不会受到影响。这些结果对于扩大低收入和中等收入国家的大规模狗疫苗接种计划具有潜在的令人兴奋的应用。特别是对于难以接触到的人群,他们获得电力和冷链疫苗储存的机会有限。
    Background: Thermostable vaccines greatly improved the reach and impact of large-scale programmes to eliminate infectious diseases such as smallpox, polio, and rinderpest. A study from 2015 demonstrated that the potency of the Nobivac® Rabies vaccine was not impacted following experimental storage at 30°C for 3 months. Whether the vaccine would remain efficacious following storage under more natural, fluctuating temperature conditions remains unknown. We carried out a randomised controlled non-inferiority trial to compare serological responses in dogs following vaccination with doses stored under cold chain conditions with those stored within a locally made Passive Cooling Device (\"Zeepot\") under fluctuating temperature conditions. Materials and Methods: Nobivac® Rabies vaccine was stored under either cold-chain conditions or within the Zeepot for 2 months. Daily ambient temperatures and temperatures within the Zeepot were recorded every 3 h. Following storage, 412 domestic dogs were randomly assigned to receive either cold-chain or Zeepot stored Nobivac® Rabies vaccine. Baseline and day 28-post vaccination blood samples were collected. Serological analysis using the Fluorescent Antibody Virus Neutralisation assay was carried out with a threshold of 0.5 IU/ml to determine seroconversion. In addition, the impact of dog Body Condition Score, sex, and age on seroconversion was examined. Results: The serological response of dogs vaccinated using Nobivac® Rabies vaccine stored within the Zeepot was not inferior to the response of dogs vaccinated using cold-chain stored vaccine (z = 1.1, df = 313, p-value = 0.25). Indeed, the 28-day post-vaccination group geometric mean titre was 1.8 and 2.0 IU/ml for cold-chain vs. non-cold-chain storage, respectively. Moreover, the percentage of dogs that seroconverted in each arm was almost identical (85%). There was a positive linear trend between Body Condition Score (O.R. 2.2, 95% CI: 1.1-5.1) and seroconversion, suggesting dogs of poor condition may not respond as expected to vaccination. Conclusions: Our study demonstrated the potency of Nobivac® Rabies vaccine is not impacted following storage under elevated fluctuating temperatures within a Zeepot. These results have potentially exciting applications for scaling up mass dog vaccination programmes in low-and-middle income countries, particularly for hard-to-reach populations with limited access to power and cold-chain vaccine storage.
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  • 文章类型: Journal Article
    狂犬病被列为世界卫生组织(WHO)在世界范围内被忽视的热带病之一,在南美产生重大影响。本文探讨了人类狂犬病病例的动态变化,宠物(狗和猫),2009-2018年期间南美的牲畜和野生动物(特别是蝙蝠)。本研究中使用的数据来自南美狂犬病的两个主要数据库:世界动物卫生组织(OIE)的OIE-WAHIS和PANAFTOSA的狂犬病流行病学监测区域信息系统(SIRVERA)。作为一种被忽视的疾病,在某些地区可能漏报,报告的狂犬病病例可能并不总是代表真正的疾病负担。分析的重点是案例数量在时间上的演变及其空间分布,以及人类感染的主要来源,通过实验室测定抗原变体或通过流行病学调查确定。此外,使用广义线性混合模型(GLMM)评估与人类病例发生相关的危险因素。我们的结果表明,就病例数而言,该病对牲畜的影响最大,而病例总数(在动物和人类中)在研究期间逐渐减少。家畜狂犬病的空间分布主要集中在西北部(主要是哥伦比亚)和东南部(巴西),和秘鲁的第三个较小的集群。在玻利维亚观察到一群狗。在研究期间报告的192例人类病例中,其中70%是由蝙蝠传播的。研究期间报告的人间病例数与牲畜报告的狂犬病病例数显著相关,宠物和野生动物。尽管总体病例报告率下降,这种疾病仍然是南美主要的动物和公共卫生问题,以及汇编系统信息的新策略,需要网络和教育,以及兽医人员的教育和培训。
    Rabies is listed as one of the World Health Organisation\'s (WHO) Neglected Tropical Diseases Worldwide, with a significant impact in South America. This paper explores the dynamics of rabies cases in humans, pets (dogs and cats), livestock and wildlife (bats in particular) in South America during the period 2009-2018. The data used in this study were derived from the two main databases for rabies in South America: the OIE-WAHIS from the World Organisation for Animal Health (OIE) and PANAFTOSA\'s Regional Information System for the Epidemiological Surveillance of Rabies (SIRVERA). Being a neglected disease with possible underreporting in some areas, the reported rabies cases may not always represent the real disease burden. The analysis focuses on the evolution of the number of cases in time and their spatial distribution, as well as on the main source of infections in humans, determined by laboratory assays of the antigenic variant or through epidemiological investigations. Additionally, Generalised Linear Mixed Models (GLMM) were used to evaluate the risk factors associated with the occurrence of human cases. Our results show that the highest impact of the disease in terms of number of cases was reported on livestock, while the overall number of cases (in animals and humans) progressively decreased along the study period. The spatial distribution of rabies in livestock showed two main clusters in the north-western (mainly Colombia) and in the south-eastern part of the affected area (Brazil), and a third smaller cluster in Peru. A cluster in dogs was observed in Bolivia. Out of the 192 human cases reported during the study period, 70% of them were transmitted by bats. The number of human cases reported during the study period were significantly associated with the number of rabies cases reported in livestock, pets and wildlife. Despite the overall decreasing case report rate, the disease still represents a major animal and public health concern in South America, and new strategies for compiling systematic information, networking and education are needed, as well as the education and training of veterinary staff.
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