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Volume 32, Number 5—May 2026

Dispatch

Yezo Virus Diversity in Tick Bite Patients and Ticks, Russia

Yulia O. EpikComments to Author , Kseniia A. Sycheva, Lyudmila S. Karan, Evgenia V. Mokretsova, Anna G. Dragomeretskaya, Olga E. Trotsenko, Anna R. Efimova, Yulia M. Spirina, Olga M. Drozdova, Tatyana E. Bondarenko, Ekaterina A. Blinova, Vasiliy G. Akimkin, and Evgeny S. Morozkin
Author affiliation: Central Research Institute of Epidemiology, Moscow, Russia (Y.O. Epik, K.A Sycheva, E.A. Blinova, V.G. Akimkin, E.S. Morozkin); Russian Сenter of Neurology and Neurosciences, Moscow (L.S. Karan); Far Eastern State Medical University, Khabarovsk, Russia (E.V. Mokretsova); Khabarovsk Research Institute of Epidemiology and Microbiology, Khabarovsk (E.V. Mokretsova, A.G. Dragomeretskaya, O.E. Trotsenko), Centre of Hygiene and Epidemiology in the Kemerovo region–Kuzbass, Kemerovo, Russia (A.R. Efimova, Y.M. Spirina); Kemerovo State Medical University, Kemerovo (O.M. Drozdova); Kuzbass Clinical Infectious Diseases Hospital, Kemerovo (T.E. Bondarenko).

Main Article

Table 2

Detection of Yezo virus RNA in ixodid ticks from Khabarovsk and Kemerovo regions, Russia*

Region Sampling year Tick species No. ticks No. pools No. positive pools Prevalence SE
Kemerovo 2006 Ixodes persulcatus 700 70 6 0.9% 0.0036
2023
 I. persulcatus
 648
 216
 2
 0.3%
 0.0022
Khabarovsk 2023 I. persulcatus 816 272 4 0.5% 0.0025
2023 Haemaphysalis concinna 159 53 0 NA NA
2023
 H. japonica
 168
 56
 0
 NA
 NA
Total
 2491 667 12

*We calculated the prevalence by using Epitools (https://epitools.ausvet.com.au). NA, not available.

Main Article

Page created: March 31, 2026
Page updated: April 28, 2026
Page reviewed: April 28, 2026
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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