Experimental Animals
Online ISSN : 1881-7122
Print ISSN : 1341-1357
ISSN-L : 0007-5124
Original
New Isolates of Pneumonia Virus of Mice (PVM) from Japanese Rat Colonies and their Characterization
Hironori MIYATAMasao KISHIKAWAHisayoshi KONDOChieko KAIYoji WATANABEKazutaka OHSAWAHiroshi SATO
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Keywords: mouse, PVM, rat, RNA, virus
JOURNAL FREE ACCESS

1995 Volume 44 Issue 2 Pages 95-104

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Abstract

Two virus strains were isolated from the lungs of athymic rats and mice used as sentinel animals in 2 colonies of laboratory rats in Japan in which antibodies to the pneumonia virus of mice (PVM) had been detected. The new isolates were identified as PVM by the following characteristics: RNA virus, susceptibility to ether treatment, long filamentous viral structure in the cytoplasm of infected cells, and hemagglutinating activity in various erythrocytes, including those of mice and rats. In addition, cross neutralization with the prototype of PVM (No.15 strain) was observed. This is the first report of the isolation of PVM from laboratory animals in Japan.

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© 1995 Japanese Association for Laboratory Animal Science
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