Document Detail


Experimental transmission of Langat (tick-borne encephalitis virus complex) virus by the soft tick Ornithodoros sonrai (Acari: Argasidae).
MedLine Citation:
PMID:  8158617     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Laboratory studies determined that the soft tick Ornithodoros sonrai Sautet & Witkowski is a competent vector of Langat (tick-borne encephalitis virus complex) virus. When ticks fed on suckling mice having a mean viremia of 10(7.2) plaque-forming units per ml, 52% (n = 208) became infected, and 84% (n = 87) of the infected ticks transmitted virus by bite when fed individually on suckling mice > or = 27 d after the infectious blood meal. Overall, 79 of 184 (43%) of ticks exposed to the original viremic mice individually transmitted virus by bite when tested up to 351 d after the infectious blood meal. In addition, ticks transmitted virus both transstadially and transovarially. Some ticks that transmitted virus during their first transmission attempt were retested. These ticks transmitted virus during 81 (99%) of 82 refeeding attempts, including ticks that transmitted virus 512 d after the initial infectious meal. Therefore, Ornithodoros spp. should be considered as potential vectors of Langat and other tick-borne encephalitis viruses.
Authors:
M J Turell; L A Durden
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of medical entomology     Volume:  31     ISSN:  0022-2585     ISO Abbreviation:  J. Med. Entomol.     Publication Date:  1994 Jan 
Date Detail:
Created Date:  1994-05-18     Completed Date:  1994-05-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375400     Medline TA:  J Med Entomol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  148-51     Citation Subset:  IM    
Affiliation:
Applied Research Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702.
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MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Suckling / microbiology
Arachnid Vectors / microbiology*
Encephalitis Viruses, Tick-Borne / isolation & purification*
Encephalitis, Tick-Borne / transmission*
Mice
Mice, Inbred ICR
Ticks / microbiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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