Childhood vaccinations research paper

In 1900, the smallpox vaccine was the only one administered to children. By the early 1950s, children routinely received three vaccines, for protection against diphtheria , pertussis , tetanus and smallpox , and as many as five shots by two years of age. [3] Since the mid-1980s, many vaccines have been added to the schedule. As of 2009 [update] , the US Centers for Disease Control and Prevention (CDC) now recommends vaccination against at least fourteen diseases. By two years of age, . children receive as many as 24 vaccine injections, and might receive up to five shots during one visit to the doctor. [3] The use of combination vaccine products means that, as of 2013 [update] , the United Kingdom 's immunization program consists of 9 injections by the age of two, rather than 22 if vaccination for each disease was given as a separate injection. [6]

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Childhood vaccinations research paper

childhood vaccinations research paper

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