The objective of this open study was to monitor the long-term effectiveness of the Lederle-
Takeda diphtheria and tetanus toxoids and acellular pertussis antigen (s)(DTaP) vaccine …

Objective. This case-control study investigated the protective efficacy against pertussis of
three doses of a two-component acellular pertussis vaccine (manufactured by Biken in …

Objective. To evaluate the safety and immunogenicity of 6 different acellular pertussis
vaccines combined with diphtheria and tetanus toxoids (DTaP) and with 1 licensed whole …

The safety and immunogenicity of a booster dose of a new acellular pertussis component
diphtheria-tetanus toxoids-pertussis vaccine (DTaP) were compared with whole cell …

Background Concern about both safety and efficacy has made the use of whole-cell
pertussis vaccines controversial. In some European countries, including Italy, the rate of …

Objective: To assess the efficacy and safety of whole-cell and acellular pertussis vaccines
administered to children singly or within diphtheria, tetanus and pertussis (DTP) vaccines …

OBJECTIVE: Data on the effectiveness of the diphtheria–tetanus–acellular pertussis (DTaP)
vaccine in the first 4 years of life are sparse. We evaluated the vaccine effectiveness (VE) of …

BACKGROUND: During the 1990s, the United States switched from combined diphtheria,
tetanus toxoids, whole-cell pertussis (DTwP) vaccines to combined acellular pertussis …

Background. The goal of the trial was to determine the efficacy of a multicomponent acellular
pertussis vaccine against Bordetella illnesses in comparison with a whole-cell product and …

Background Because of concern about safety and efficacy, no pertussis vaccine has been
included in the vaccination program in Sweden since 1979. To provide data that might …