✦ LIBER ✦

The Alsatian tick-borne encephalitis focus: Presence of the virus among ticks and small mammals

✍ Scribed by C. Perez-Eid; C. Hannoun; F. Rodhain

Publisher: Springer
Year: 1992
Tongue: English
Weight: 794 KB
Volume: 8
Category: Article
ISSN: 0393-2990
DOI: 10.1007/bf00144797

No coin nor oath required. For personal study only.

✦ Synopsis

Tick-borne encephalitis virus -Small mammals -Alsace An extensive epidemiologic survey was carried out from 1970 to 1974 in order to understand the condition of circulation of tick-borne encephalitis virus between ticks and small mammals in the Alsatian focus, France.

The virus has been isolated from I x o d e s ricinus adult ticks (30 lots out of 369, representing a total of 5617 ticks), and from I x o d e s ricinus nymphs (4 lots out of 251, representing a total of 8587 ticks). The virus has also been isolated from 11 pools of rodent organs (out of 3361 rodents), and HI antibodies were detected in 21 out of 8735 rodent specimens. The virus has never been detected in rodent blood, nor in 10,298 ticks collected engorged from 1505 vertebrate hosts.

These results show that Alsatian tick-borne encephalitis focus is stable since the activity of the virus is detected every year, and that the focus is an extended one since the virus is isolated from 5 of 6" study sites, as well as in several control sites.

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