Poliomyelitis Virus in Human Blood During the "Minor Illness" and the Asymptomatic Infection.

Abstract

Poliomyelitis virus has been isolated from the blood of 4 children in one family during a poliomyelitis epidemic in Ohio in 1952. Three of the children had characteristic clinical pictures of the minor illness or abortive poliomyelitis, and one was asymptomatic. All were found to have virus in the throut and rectal swabs as well as in the blood. None went on the develop signs or symptoms of the major illness, either paralytic or nonparalytic.