在阿拉斯加通过被动和主动监测发现的和传播的微生物
Micah B Hahn1, Andrias Hojgaard2, Gale Disler1
1Institute for Circumpolar Health Studies, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, AK 99508, USA.
Journal of medical entomology
|June 22, 2023
概括
阿拉斯加的环境变化正在增加暴露率. 虽然没有发现人类本地病原体,但监测检测到传播的微生物,并建立了种群,包括Ixodes angustus.
科学领域:
- 兽医昆虫学 兽医昆虫学
- 分子诊断学 分子诊断学
- 生态生态学 生态生态学
背景情况:
- 北极地区面临着快速的环境变化,人们越来越担心人类和动物的传播疾病.
- 种群和它们携带的病原体正在扩大到新的地理区域.
- 了解阿拉斯加的和微生物的多样性对于公共卫生至关重要.
研究的目的:
- 为了描述阿拉斯加的传播病原体的多样性.
- 为了识别已建立的物种及其宿主.
- 评估在不断变化的北极环境中,传播疾病的风险.
主要方法:
- 通过从阿拉斯加 (2019-2020) 的人类,家禽和野生动物的被动和主动监测收集了189个聚合的样.
- 使用多重PCR安普利康测序来测试Borrelia spp., Anaplasma spp., Ehrlichia spp. 和Babesia spp. 的存在.
- 已识别的物种包括Ixodes angustus,Ixodes uriae和Haemaphysalis leporispalustris. 这三种.
主要成果:
- 在阿拉斯加发现了Ixodes angustus,Ixodes uriae和Haemaphysalis leporispalustris的已建立的种群.
- 活跃于4月至10月的Ixodes angustus在狗,猫,小型野生哺乳动物和人类身上被发现.
- 检测到Babesia microti-like寄生虫和Candidatus Ehrlichia khabarensis;Borrelia burgdorferi sensu stricto在最近旅行的狗的虫中被发现.
结论:
- 联合监测有效地检测引入的物种和病原体.
- (Ixodes angustus) 是阿拉斯加的一种已建立的,具有广泛的宿主协会.
- 虽然没有确认当地人类病原体,但传播微生物的存在需要持续监测.
相关概念视频
Investigation of Disease Outbreaks
Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
Automated Microbial Diagnostics
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...


