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Article
July 5, 1971

Viral Hepatitis, Type B (MS-2 Strain)Studies On Active Immunization

Author Affiliations

From the Department of Pediatrics, New York University School of Medicine, New York, and the Willowbrook State School, Staten Island, NY.

JAMA. 1971;217(1):41-45. doi:10.1001/jama.1971.03190010023005
Abstract

Viral hepatitis, type B (MS-2) was prevented by active and passive immunization. Active immunization was induced by inoculation of a boiled, inactivated preparation of a 1:10 dilution of MS-2 serum in distilled water; two inoculations at four-month intervals were more effective than one. However, one inoculation gave enough protection to prevent some cases and modify others.

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