What will be the recommended interval between the first and second dose for children 9 years of age and under? |
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| Friday, 02 October 2009 09:27 |
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CDC recommends that the two doses of 2009 H1N1 vaccine be separated by 4 weeks. However, if the second dose is separated from the first dose by at least 21 days, the second dose can be considered valid. |








