Chiron, Connaught Laboratories, SmithKline data

Previously announced data on DTaP (diphtheria, tetatus, acellular pertussis) vaccines were published in the New England Journal of Medicine (see BioCentury, July 17).

A European trial of three-antigen vaccines from SmithKline and Chiron Biocine showed that both had efficacy of 84 percent, compared to efficacy of 36 percent with a whole cell DTP vaccine. ...