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Am. J. Trop. Med. Hyg., 28(5), 1979, pp. 890-896
Copyright © 1979 by The American Society of Tropical Medicine and Hygiene

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Higher Venereal Infection and Transmission Rates with La Crosse Virus in Aedes triseriatus Engorged before Mating

Wayne H. Thompson
Zoonoses Research Unit, Department of Preventive Medicine, University of Wisconsin, Madison, Wisconsin 53706

Infection of colonized female Aedes triseriatus by La Crosse (LAC) virus occurred more frequently when females were inseminated by infected males after the females engorged blood (49% of 39) than when mating took place before engorgement (4% of 554). Salivary transmission of LAC virus to mice also was more frequent in females venereally infected after engorgement on a normal mouse (35% of 34) than in females mated before engorgement (2% of 49). LAC virus was transovarially transmitted by 40% of 10 females mated by infected males, and in 64% of 279 progeny reared from eggs of second or later ovarian cycles.

Accepted for publication February 17, 1979.




This article has been cited by other articles:


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J Child NeurolHome page
R. S. Rust, W. H. Thompson, C. G. Matthews, B. J. Beaty, and R. W.M. Chun
Topical Review: La Crosse and Other Forms of California Encephalitis
J Child Neurol, January 1, 1999; 14(1): 1 - 14.
[Abstract] [PDF]




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Copyright © 1979 by the American Society of Tropical Medicine and Hygiene.