Children aged 6 months through 9 years should receive two doses of 2009 H1N1 vaccine roughly 4 weeks apart, the CDC announced in MMWR.
The report details the differing age-range approvals for the manufacturers:
- CSL’s vaccine is approved for use in people 18 years and older (one dose, IM);
- Novartis’, for ages 4 and up (one dose, IM, except for children under 10, who get two);
- Sanofi Pasteur’s, for ages above 6 months (one dose, IM, except for children under 10);
- MedImmune’s, for ages 2 to 49 (one dose, intranasally, except for children under 10).
The injectable formulations are adjuvant-free and contain inactivated virus; the intranasal formulation contains live attenuated virus and shouldn’t be administered to children under 2, adults over 49, pregnant women, people with medical conditions that put them at higher risk for flu complications, and children under 5 who’ve had a wheezing episode within a year. All the vaccines contain egg protein, and the article’s table provides details on those containing mercury."