Immunization opportunities taken and missed.
A significant proportion of nonvaccination is the result of the failure of the health system to make use of every opportunity for immunization. Answers to the four questions: Who is not vaccinated? Where could vaccinations have been given? When could vaccinations have been given? and Why were vaccinations not given? are important to understanding the epidemiology of nonvaccination.
International Health Program Office, Centers for Disease Control, Atlanta, Georgia 30333.
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D005260:Female; D006801:Humans; D007114:Immunization; D007223:Infant; D011247:Pregnancy