Risk for Human Tick-Borne Encephalitis, Borrelioses, and Double Infection in the Pre-Ural Region of Russia

Éi, Korenberg; Gorban, Lidiya Ya.; Kovalevskii, Yurii V.; Frizen, Vladimir I.; Karavanov, A. S.

doi:10.3201/eid0703.010319

Cited by 25 publications

(16 citation statements)

References 7 publications

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“…They also reported that TBEV infected ticks became more aggressive, active and had a higher tolerance for the commonly used insect repellent DEET (N,N-Diethyl-meta-toluamide). In contrast, a previous study on the tick species Ixodes persulcatus reported no overrepresentation of bites by TBEV infected ticks (Korenberg et al, 2001), so there might be a difference between the two tick species or the observed difference may stem from the methods used.…”

Section: Discussioncontrasting

confidence: 42%

Tick-borne encephalitis virus in ticks detached from humans and follow-up of serological and clinical response

Lindblom

Wilhelmsson

Fryland

et al. 2014

Ticks and Tick-borne Diseases

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Section: Discussioncontrasting

confidence: 42%

Tick-borne encephalitis virus in ticks detached from humans and follow-up of serological and clinical response

Lindblom

Wilhelmsson

Fryland

et al. 2014

Ticks and Tick-borne Diseases

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“…Korenberg and colleagues reported a 6% prevalence of coinfection with TBE virus and Borrelia species among I. persulcatus Eurasian ticks (99). The prevalences of TBE virus and Borrelia in ticks appeared independent, with no apparent effect on each other (98).…”

Section: Prevalence Of Coinfecting Pathogens Among Ixodes Ticksmentioning

confidence: 99%

Coinfections Acquired from Ixodes Ticks

et al. 2006

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SUMMARY The pathogens that cause Lyme disease (LD), human anaplasmosis, and babesiosis can coexist in Ixodes ticks and cause human coinfections. Although the risk of human coinfection differs by geographic location, the true prevalence of coinfecting pathogens among Ixodes ticks remains largely unknown for the majority of geographic locations. The prevalence of dually infected Ixodes ticks appears highest among ticks from regions of North America and Europe where LD is endemic, with reported prevalences of ≤28%. In North America and Europe, the majority of tick-borne coinfections occur among humans with diagnosed LD. Humans coinfected with LD and babesiosis appear to have more intense, prolonged symptoms than those with LD alone. Coinfected persons can also manifest diverse, influenza-like symptoms, and abnormal laboratory test results are frequently observed. Coinfecting pathogens might alter the efficiency of transmission, cause cooperative or competitive pathogen interactions, and alter disease severity among hosts. No prospective studies to assess the immunologic effects of coinfection among humans have been conducted, but animal models demonstrate that certain coinfections can modulate the immune response. Clinicians should consider the likelihood of coinfection when pursuing laboratory testing or selecting therapy for patients with tick-borne illness.

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“…The statistically similar expected and observed values of the coinfection of ticks with Borrelia and TBEV in this study (Table 1) are consistent with the independent distribution of these pathogens in the ticks and do not support the postulated mutual inhibition. Thus, these two pathogens do not seem to interfere with each other in ticks and are apparently not involved in any antagonistic relationships in the tick hosts (15,16).…”

mentioning

confidence: 99%

“…Since the identification of Borrelia burgdorferi as the agent of Lyme disease, 11 tick-borne human bacterial pathogens in Europe, including that causing human granulocytic ehrlichiosis (HGE), have been described (19). Ticks and their animal hosts maintain a variety of pathogens in the same habitats, and as a consequence, they may be infected with two or more infectious agents (4,7,8,11,13,15,16,23). Closely related Ixodes tick species harbor similar sets of pathogens in America and Eurasia (9).…”

mentioning

confidence: 99%

PCR Detection of Borrelia burgdorferi Sensu Lato, Tick-Borne Encephalitis Virus, and the Human Granulocytic Ehrlichiosis Agent in Ixodes persulcatus Ticks from Western Siberia, Russia

et al. 2002

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PCR assays were used to test adult Ixodes persulcatus ticks from Western Siberia, Russia, for Borrelia burgdorferi sensu lato, tick-borne encephalitis virus (TBEV), and the human granulocytic ehrlichiosis (HGE) agent. Of the 150 ticks that were studied, 38% were infected with B. burgdorferi, 46% were infected with TBEV, and 8% were infected with the HGE agent. These three pathogens were distributed in the ticks independently of one another.

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Risk for Human Tick-Borne Encephalitis, Borrelioses, and Double Infection in the Pre-Ural Region of Russia

Cited by 25 publications

References 7 publications

Tick-borne encephalitis virus in ticks detached from humans and follow-up of serological and clinical response

Tick-borne encephalitis virus in ticks detached from humans and follow-up of serological and clinical response

Coinfections Acquired from Ixodes Ticks

PCR Detection of Borrelia burgdorferi Sensu Lato, Tick-Borne Encephalitis Virus, and the Human Granulocytic Ehrlichiosis Agent in Ixodes persulcatus Ticks from Western Siberia, Russia

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