White-nose syndrome detected in bats over an extensive area of Russia

BMC Veterinary Research

Vladimir Piacek¹  Hana Bandouchova¹  Veronika Kovacova¹  Jiri Pikula¹  Mikhail P. Tiunov²  Markéta Harazim³  Natália Martínková³  Jan Zukal³  Oleg L. Orlov⁴  Alexander D. Botvinkin⁵  Alexandra P. Shumkina⁶ 

[1] Department of Ecology and Diseases of Game, Fish and Bees, University of Veterinary and Pharmaceutical Sciences Brno;Institute of Biology and Soil Science, Far East Branch of the Russian Academy of Sciences;Institute of Vertebrate Biology of the Czech Academy of Sciences;International Complex Research Laboratory for Study of Climate Change, Land Use and Biodiversity, Tyumen State University;Irkutsk State Medical University;Western Baikal protected areas, Federal State Budgetary Institution “Zapovednoe Pribaikalye”;

关键词: Chiroptera;    Hibernation;    Pseudogymnoascus destructans;    Prevalence;    Distribution;   

DOI  :  10.1186/s12917-018-1521-1

来源: DOAJ

【 摘 要 】

Abstract Background Spatiotemporal distribution patterns are important infectious disease epidemiological characteristics that improve our understanding of wild animal population health. The skin infection caused by the fungus Pseudogymnoascus destructans emerged as a panzootic disease in bats of the northern hemisphere. However, the infection status of bats over an extensive geographic area of the Russian Federation has remained understudied. Results We examined bats at the geographic limits of bat hibernation in the Palearctic temperate zone and found bats with white-nose syndrome (WNS) on the European slopes of the Ural Mountains through the Western Siberian Plain, Central Siberia and on to the Far East. We identified the diagnostic symptoms of WNS based on histopathology in the Northern Ural region at 11° (about 1200 km) higher latitude than the current northern limit in the Nearctic. While body surface temperature differed between regions, bats at all study sites hibernated in very cold conditions averaging 3.6 °C. Each region also differed in P. destructans fungal load and the number of UV fluorescent skin lesions indicating skin damage intensity. Myotis bombinus, M. gracilis and Murina hilgendorfi were newly confirmed with histopathological symptoms of WNS. Prevalence of UV-documented WNS ranged between 16 and 76% in species of relevant sample size. Conclusions To conclude, the bat pathogen P. destructans is widely present in Russian hibernacula but infection remains at low intensity, despite the high exposure rate.

【 授权许可】

Unknown