Spring-Fall Flu Shots Tested for Kids (cont.)
Spring-Fall Flu Shots Safe, Protect Children
10/02/2004 DURHAM, N.C. - Giving flu vaccine to toddlers in the spring and fall guards against infection and is easier on parents than the fall schedule of two doses administered a month apart, found researchers from Duke University Medical Center and the University of Washington.
The study compared the immune response in toddlers aged six to 23 months who received a flu shot in the spring and one in the fall, to the response of those who received fall shots separated by one month. The Centers for Disease Control and Prevention this year issued a recommendation for flu vaccination for all children in this age group. Children given spring-fall shots - up to six months apart - were as well-protected as those who received two shots in the fall, the study showed. The spring-fall group also completed their immunization earlier than toddlers in the fall group. A survey of parents showed 66 percent preferred the spring-fall schedule.
The results were presented Oct. 2, 2004, at the annual meeting of the Infectious Diseases Society of America. The study was sponsored by an unrestricted grant from Aventis Pasteur, which manufactures flu vaccine.
"Kids less than two years old have a higher risk of significant complications from flu that require hospitalization. Trying to get them all in for their shots in fall is logistically tough and not necessarily convenient for parents. If we can get more kids immunized by making the schedule more convenient for parents, then we'll prevent more severe flu complications," said Emmanuel Walter, M.D., associate professor of pediatrics at Duke University Medical Center.
In the trial, the spring dose given during the study was the 2002-2003 vaccine and the fall dose was the 2003-2004 vaccine. Both vaccines coincidently had similar antigen components. Antigens are substances that stimulate an immune response. This year, the researchers will compare the immune protection afforded by the spring-fall schedule when the inactivated flu vaccine changes significantly from year to year. Toddlers enrolled in the study this spring received the 2003-2004 vaccine and will receive the 2004-2005 vaccine this fall.
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