In Mongolia, TBEV was first isolated (Kraminskii V.A) from marmot liver in Dornod province in 1979, while the Ixodes persulcatus tick was identified in 1987 by M. Dash.1,2 I. persulcatus is a taiga tick distributed in coniferous forests consisting mostly of pines, spruces and larches.3 Much of northern Mongolia is covered in coniferous forest, and the southern edge of the Siberian taiga is located along the Khangai and Khentii mountains.
In Mongolia, TBEV was first isolated (Kraminskii V.A) from marmot liver in Dornod province in 1979, while the Ixodes persulcatus tick was identified in 1987 by M. Dash.1,2 I. persulcatus is a taiga tick distributed in coniferous forests consisting mostly of pines, spruces and larches.3 Much of northern Mongolia is covered in coniferous forest, and the southern edge of the Siberian taiga is located along the Khangai and Khentii mountains.
Since the 1980s, Mongolian scientists worked together with researchers from the Institute of Epidemiology and Microbiology of Irkutsk, Russia to investigate the spread of ticks carrying the TBEV in the forest areas of Khuvsgul, Khentii, Bulgan, Selenge, Orkhon, Tuv, Dornod, Arkhangai and Uvurkhangai provinces, which had been identified as TBEV-endemic regions.1 Finally in 1989, following available local information on diseases suspected to be TBE, Abmed et al. documented natural foci of the TBEV in the administrative districts of Zelter, Bugant and Khuder in the Selenge province and noted that it is important to plan and implement preventive measures.2
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