Abstract
The aim of the work – analysis of peculiarities of the plague epizooty found in the southern steppe part of the Ukok Plateau in 2020.Materials and methods. Epizootiological survey was conducted over the area of 1573 km2 in July and August, 2020. 141 mammals, 157 ectoparasites (including 152 fleas), 17 bone remains samples, and 50 regurgitates of predatory birds have been tested for plague.Results and discussion. The background species of mammals – natural hosts of Yersinia pestis in the southern steppe part of the Ukok plateau are gray marmot, long-tailed souslik, and Daurian pika. Abundance of the gray marmot was high and amounted to 1.7±0.18 inhabited burrows per 1 ha (n=30) with 90 % occupancy. Three strains of Yersinia pestis ssp. pestis have been isolated: from Oropsylla alaskensis fleas collected from long-tailed souslik, gray marmot carcass, and regurgitates of predatory birds. Yersinia pestis DNA have been detected in 14 objects. Eight positive results of serological tests have been obtained. The epizooty area that was confirmed by Yersinia pestis isolation totaled 252 km2 . As a result of the survey the circulation of Yersinia pestis ssp. pestis have been for the first time established on the Ukok Plateau. The target species – the gray marmot, as well as the long-tailed souslik, are actively involved into the epizooty.
Highlights
The aim of the work – analysis of peculiarities of the plague epizooty found in the southern steppe part of the Ukok Plateau in 2020
Epizootiological survey was conducted over the area of 1573 km2 in July and August, 2020. 141 mammals, 157 ectoparasites, 17 bone remains samples, and 50 regurgitates of predatory birds have been tested for plague
Three strains of Yersinia pestis ssp. pestis have been isolated: from Oropsylla alaskensis fleas collected from long-tailed souslik, gray marmot carcass, and regurgitates of predatory birds
Summary
Цель работы – анализ особенностей эпизоотии чумы, обнаруженной в южной степной части плоскогорья Укок в 2020 г. Фоновыми видами носителей чумного микроба в южной степной части плоскогорья Укок являются серый сурок, длиннохвостый суслик и даурская пищуха. Численность серого сурка высокая и составила (1,7±0,18) жилых бутана на 1 га (n=30) с 90 % заселенностью бутанов. Pestis: от блох Oropsylla alaskensis с длиннохвостого суслика, трупа серого сурка, погадки хищных птиц. Подтвержденной изоляцией возбудителя чумы, составила 252 км. В результате проведенных исследований впервые установлена циркуляция Yersinia pestis ssp. В эпизоотию активно вовлечен промысловый вид – серый сурок, а также длиннохвостый суслик. Ключевые слова: Горно-Алтайский высокогорный природный очаг чумы, плоскогорье Укок, эпизоотическая активность, Marmota baibacina, Spermophilus undulatus, Yersinia pestis. New Epizootic Territory in Gorno-Altai High-Mountain Natural Plague Focus on the Ukok Plateau
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.