1988
DOI: 10.1007/bf01962341
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Protective effect of acellular pertussis vaccines

Abstract: Two acellular pertussis vaccines, a mono-component toxoid of pertussis toxin and a two-component vaccine containing both the toxoid and filamentous haemagglutinin, were used for primary immunization of infants 5 1/2 to 10 months of age in two clinical trials in Sweden. Over a follow-up period of 12 to 17 months, 37 children were exposed to pertussis in the household or a daycare centre. Only one child developed mild, culture-confirmed pertussis as opposed to the expected number of 30 to 33 cases based on an as… Show more

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Cited by 22 publications
(9 citation statements)
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References 15 publications
(14 reference statements)
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“…Five of 26 children >-4 years lacked detectable antibodies to pertussis toxin. Since there are reasons to believe that serum antibodies against pertussis toxin are important for protection [4][5][6][7][8], this study indicates that booster doses with vaccines containing pertussis toxoid are needed for life-long protection. In contrast to the decline in pertussis toxin antibodies with time, FHA antibodies remained high in older children.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Five of 26 children >-4 years lacked detectable antibodies to pertussis toxin. Since there are reasons to believe that serum antibodies against pertussis toxin are important for protection [4][5][6][7][8], this study indicates that booster doses with vaccines containing pertussis toxoid are needed for life-long protection. In contrast to the decline in pertussis toxin antibodies with time, FHA antibodies remained high in older children.…”
Section: Discussionmentioning
confidence: 99%
“…In 1979 it was proposed that pertussis, like diphtheria and tetanus, is a toxin-mediated disease [1], and pertussis toxin was purified soon afterwards [2,3]. Inactivated pertussis toxin induces at least partial protection against pertussis [4][5][6], and the protection seems to be at least partly mediated through toxin neutralizing serum antibodies [7,8]. A surface protein of B. pertussis, filamentous hemagglutinin (FHA) might also contribute to protection against disease [9].…”
Section: Introductionmentioning
confidence: 99%
“…From mid-1982 to mid-1983, Blennow et al carried out a nonblinded but prospective cohort study involving 1,140 infants in Sweden (58). In this trial, 525 infants received three doses of a plain whole-cell vaccine (Pertussis Vaccine Wellcome; Wellcome) licensed in the United Kingdom and 615 unvaccinated infants served as controls.…”
Section: B Pertussis Vaccinesmentioning
confidence: 99%
“…2,6 Open studies and a double-blind study indicate that pertussis toxoids induce protection. [7][8][9] The present trial was performed in Sweden, where pertussis has been endemic since the early 1970s, when changes in production made the Swedish-made whole-cell vaccine ineffective. 10 When the incidence of pertussis increased despite vaccination rates of about 90 percent, the recommended infant vaccine was withdrawn in 1979.…”
mentioning
confidence: 99%