Abstract
Summary
With the use of the intrinsic interference system it is possible to demonstrate in the sera from patients with acute hepatitis (both Au-Ag-positive and negative) agents which are infectious for human tissue cultures and which can be passed in them. These agents were not neutralized by gamma globulin nor by a hemophiliac serum containing Au antibodies when attempts were made to neutralize the virus in the initial serum taken from hepatitis patients.
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