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Drug and Therapeutics Bulletin, 1975
Vaccines may act in two ways, by increasing the immunity of an individual and by increasing herd-immunity. Vaccines against poliomyelitis and diphtheria have been extremely successful for both purposes. Other vaccines are now being introduced against diseases with less morbidity and mortality, and it is important that these vaccines are safe as well as
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Vaccines may act in two ways, by increasing the immunity of an individual and by increasing herd-immunity. Vaccines against poliomyelitis and diphtheria have been extremely successful for both purposes. Other vaccines are now being introduced against diseases with less morbidity and mortality, and it is important that these vaccines are safe as well as
openaire +1 more source