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Cited by 350

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Protective Efficacy of Pneumococcal Polysaccharide Vaccines

Smit, Pieter·1977·JAMA: The Journal of the American Medical Association

Abstract

Clinical studies of 6- and 12-valent pneumococcal capsular polysaccharide vaccines were carried out in controlled studies among novice gold miners in South Africa. In the studies 1,523 persons received pneumococcal vaccine, and 3,171 were included as controls. In the great majority of subjects given pneumococcal vaccine, antibodies developed against the capsular types included in the vaccine. The 6-valent vaccine afforded 76% reduction in cases of laboratory-verified pneumococcal pneumonia caused by the homologous types, and there was 92% reduction in the cases afforded by the 12-valent vaccine. The vaccines were well tolerated and offer great promise for effective control of illnesses caused by pneumococci.

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Metadata

Authors
Smit, P.
Venue
JAMA: The Journal of the American Medical Association
Published
1977-12-12
Volume
238
Issue
24
Pages
2613
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2099947481
Cited by
350
References
0
FWCI
15.60
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Protective Efficacy of Pneumococcal Polysaccharide Vaccines. https://app.cochat.ai/papers/10.1001/jama.1977.03280250039019
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Smit, P. (1977). Protective Efficacy of Pneumococcal Polysaccharide Vaccines. JAMA: The Journal of the American Medical Association. https://doi.org/10.1001/jama.1977.03280250039019

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.