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How many doses of the H1N1 vaccine are needed to be protected?

April 26, 2017doses h1n1 needed protected vaccine

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How many doses of the H1N1 vaccine are needed to be protected?

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We now know that one dose of the H1N1 vaccine is required for adults and healthy children aged 3 and older. For children under the age of 3, and for children between the ages of 3 and 9 who have an underlying medical condition, two half doses given a minimum of 21 days apart are necessary to provide an acceptable level of immunity.