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Oral and Transovarial Transmission of la Crosse Virus by Aedes Atropalpus
Jerome E. Freier
Jerome E. Freier
Arbovirus Program, Pacific Biomedical Research Center, University of Hawaii, Vector Biology Laboratory, University of Notre Dame, Honolulu, Hawaii 96816
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John C. Beier
John C. Beier
Arbovirus Program, Pacific Biomedical Research Center, University of Hawaii, Vector Biology Laboratory, University of Notre Dame, Honolulu, Hawaii 96816
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A recently colonized strain of Aedes atropalpus was shown to be equally susceptible to oral infection with La Crosse (LAC) virus as the natural vector, Aedes triseriatus. La Crosse virus was shown to replicate and persist at high titers in orally infected Ae. atropalpus. In addition, orally infected females transmitted virus efficiently to suckling mice by mosquito bite. Transovarial transmission of LAC virus was demonstrated by recovery of virus from larval progeny after parental females were infected either orally or by intrathoracic inoculation. Virus was recovered from larval progeny that developed from eggs produced both autogenously and anautogenously. Transovarial transmission of LAC virus to F1 adults was also shown, and the filial infection rates were similar to that obtained with a strain of Ae. triseriatus used for comparison.
Author Notes
Present address: Yale Arbovirus Research Unit, Department of Epidemiology and Public Health, Yale University School of Medicine, P.O. Box 3333, New Haven, Connecticut 06510.
Present address: NIH Resident Consultant, Ain Shams University, Cairo, Egypt. Mailing address: USAID-CAIRO, Box 10, FPO, New York 09527.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 343 | 173 | 4 |
| Full Text Views | 9 | 3 | 1 |
| PDF Downloads | 6 | 3 | 1 |