An epidemic of paralytic poliomyelitis characterized by dual infections with poliomyelitis and Coxsackie viruses.

6 }23/26 3is} 0/4 3/15 0/6 +P, poliomyelitis virus isolated, -t-C, C virus isolated, -P, polio virus not recovered, -C, C virus not recovered, nd P, no test made for poliomyelitis virus. 16/20 means that of 20 patients tested, the sera of 16 showed increases in antibodies. sera (see Table XIV) show a definite trend, which was reproducible on sera collected from the same individuals 1 month and again 3 to 4 months later.

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