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Experimental Vector-Host Studies with Tensaw Virus, a Newly Recognized Member of the Bunyamwera Arbovirus Group

W. D. SudiaNational Communicable Disease Center, Health Services and Mental Health Administration, U. S. Department of Health, Education, and Welfare, Atlanta, Georgia 30333

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P. H. ColemanNational Communicable Disease Center, Health Services and Mental Health Administration, U. S. Department of Health, Education, and Welfare, Atlanta, Georgia 30333

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R. W. ChamberlainNational Communicable Disease Center, Health Services and Mental Health Administration, U. S. Department of Health, Education, and Welfare, Atlanta, Georgia 30333

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Tensaw virus inoculated into various vertebrates by the subcutaneous route produced no outward signs of infection. Viremias of highest levels and of greatest duration occurred in dogs, rabbits, and cotton rats. Chickens and English sparrows were resistant. Transmission of Tensaw virus from infected dogs to suckling mice was accomplished in the laboratory by Anopheles quadrimaculatus Say; transmission rates up to 100% were obtained. Results obtained from intrathoracic inoculation of Tensaw virus into Culex quinquefasciatus Say indicated this species to be an unlikely vector.

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