Accession Number:

AD0645655

Title:

DISTRIBUTION AND RELATIONSHIPS BETWEEN FOCI OF TICKBORNE ENCEPHALITIS, TICK TYPHUS OF NORTHERN ASIA, AND Q FEVER IN WESTERN SIBERIA,

Descriptive Note:

Corporate Author:

NAVAL MEDICAL RESEARCH UNIT NO 3 CAIRO (EGYPT) DEPT OF MEDICAL ZOOLOGY

Personal Author(s):

Report Date:

1964-01-01

Pagination or Media Count:

10.0

Abstract:

Among infections with natural facality transmitted by Ixodidae ticks, tick-borne encephalitis and tick typhus represent infections which form foci only among wild vertebrates, while Q fever represents those forming independent foci also among farm and domestic animals. The main species of Ixodes ticks of Western Siberia - Dermacentor pictus, D. marginatus, D. silvarum, and Ixodes persulcatus - have been found to be spontaneously infected with tick-borne encephalitis and tick typhus. Serological survey of the local population, farm animals and wild small mammals the complement-fixation test revealed the presence of tick typhus and Q fever in all landscape zones of Western Siberia, except for the uninvestigated extreme north, and in all areas where cases of tick-borne encephalitis and Omsk hemorrhagic fever are reported, as well as common sources of infection with tick-borne encephalitis and tick typhus. It is suggested that polyvectoral and polyhostal natural foci of these 3 infections arise simultaneously on a vast territory within the habitat of the above species of Ixodes ticks in Western Siberia. Author

Subject Categories:

  • Biology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE