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  • Title: A naturally occurring epizootic caused by Sendai virus in breeding and aging rodent colonies. II. Infection in the rat.
    Author: Burek JD, Zurcher C, Van Nunen MC, Hollander CF.
    Journal: Lab Anim Sci; 1977 Dec; 27(6):963-71. PubMed ID: 202799.
    Abstract:
    Sendai virus infected a hysterectomy derived, barrier maintained breeding colony and a conventional aging rat colony. The virus produced seroconversion in the colonies followed by a 7-month period of decreasing titers. Clinical signs were absent during the months when titers were highest, and there was no increase in mortality, but multifocal interstitial pneumonia with perivascular and peribronchial cuffing by lymphocytes and plasma cells was present in rat lungs examined histologically. Such lesions were absent before the period of seroconversion. During the months of declining titers, the interstitial and perivascular lesions decreased in frequency and severity. The peribronchial lesions did not decrease, however, and were still present in many rats 7 months after the acute infection. Attempts to isolate the virus from weanling rats were unsuccessful.
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