One dose of H1N1 vaccine found effective for children 10 and older
NEWS IN BRIEF — Posted Oct. 5, 2009
Early results from a trial testing a 2009 influenza A(H1N1) vaccine in children found that a single dose likely will provide protection for the majority of 10- to 17-year-olds within eight to 10 days after getting the injection.
The trial, which is sponsored by the National Institute of Allergy and Infectious Diseases, is assessing the safety and immune responses prompted by the new vaccine in three age groups: 6 months to 35 months; 3 years to 9 years; and 10 to 17 years.
A strong immune response was seen in 76% of the 10- to 17-year-olds tested after one dose of the vaccine. Among 3- to 9-year-old children, 36% of the 25 tested had a strong immune response. Among 20 children ages 6 months to 35 months, 25% had a strong immune response.
Note: This item originally appeared at http://www.ama-assn.org/amednews/2009/10/05/prbf1005.htm.