LESIONS CAUSED IN SUCKLING MICE BY CERTAIN VIRUSES ISOLATED FROM CASES OF SO CALLED NON-PARALYTIC POLIOMYELITIS AND OF PLEURODYNIA

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Abstract
A study has been made of the lesions produced in suckling mice by the following viruses: Powers, Matulaitis, DeMole, Kine, McCarthy, Conn. 5, Ohio R, High Point, WS No. 4, EMC, and Col. SK. Pathologic alterations have been found in myocardium, lungs, liver, pancreas, thymus, brain and spinal cord, adipose tissue, and skeletal muscles. A comparison of the lesions produced by the individual strains has disclosed certain differential features which are discussed in detail. Within the group of so called Coxsackie viruses, myositis has not proved to be a constant finding, and it may occur in suckling mice infected with other types of virus.