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The first recorded isolation of a paramyxovirus from a bat (Chiroptera) is described. The isolate was subsequently identified as a new animal subtype of the parainfluenza type-2 group. Pathogenicity for suckling mice, chick embryos, and 3-day-old white leghorn chicks was demonstrated. Growth in two primary cell cultures and several cell lines was characterized by the formation of syncytia having a "Swiss cheese" appearance. Seroepidemiologic studies revealed specific neutralization of the bat virus by serum specimens from 5 of 70 fruit-eating bats, Rousettus leschenaulti. Bat parainfluenza antibodies were also demonstrated in 10% of the human serum samples tested, but they were not present in sera from Macaca monkeys.
Accepted for publication June 4, 1970.
This investigation was supported in part by Training Grant 2-T1-AI 74 and by Research Fellowship 5-F3-AI 39,169 from the National Institute of Allergy and Infectious Diseases, National Institutes of Health.
Please address reprint requests to Dr. Hollinger, Department of Virology and Epidemiology, Baylor College of Medicine, Houston, Texas 77025.
* The Virus Research Centre is maintained by the Indian Council of Medical Research and is supported in part by Grant 01-007-1 of PL-480 funds from the National Institutes of Health, USPHS, through the Indian Council of Medical Research.
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