## Abstract Three doses of a recombinant DNA HBV vaccine (MSD) were given to healthy male homosexuals. Seventyβeight out of 104 (77.6%) participants had detectable antibody (antiβHBs) two months after the third dose. Seroconversion occurred in only 9 out of 27 subjects (33.3%) who were antiβHIV pos
Kinetics of antibody response to hepatitis B virus determinants and to recombinant vaccines in Italy
β Scribed by A. R. Zanetti; E. Tanzi; L. Romano; P. Vigano; A. Cargnel; S. Hojvat; A. J. Zuckerman
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 531 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0146-6615
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β¦ Synopsis
Abstract
The kinetics of antibody response to the group determinant a and subdeterminants d and y of hepatitis B virus were studied after infection and following immunisation with two recombinant DNA yeastβderived hepatitis B vaccines. The initial antibody response was to the subdeterminant epitopes, whereas antiβa antibody, which provides protection against different subtypes of the virus, was not detected for some weeks or months. The delay in the development of antiβa antibody after active immunisation raises important issues of early protection against infection.
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Of 1,801 Chinese subjects, age 1 to 90 years, screened for hepatitis B surface antigen and antibody (HBsAg, anti-HBs) and antibody to hepatitis B core antigen (anti-HBc), 214 (1 1.9%) had an isolated, positive anti-HBc result; anti-HBc was reproducibly present in the initial sera in only 66% and per