INFECTIVITY OF RIBONUCLEIC ACID FROM POLIOVIRUS IN HUMAN CELL MONOLAYERS

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Abstract
Ribonucleic acid prepared by the method of Gierer and Schramm from concentrated and partially purified types I and II polioviruses has been demonstrated to be infectious for HeLa and human amnion cells in monolayers. In areas of cytopathogenic action resulting from invasion of cells by RNA, intact poliovirus, of the type from which the RNA had been prepared, is present.