[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address Please contact the publisher to request reinstatement.
[Skip to Content Landing]
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

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.