
UPDATED: 2-02-2004
Dr. Charles D. Ericsson is professor and clinical director of infectious diseases at the UT Medical School.
See Dr. Ericsson also at:
Special Instructions for Children Being Vaccinated Against Flu for the First Time:
Children 6 months up to 9 years of age getting a flu vaccine for the first time will need two doses of vaccine the first year they are vaccinated. If possible, the first dose should be given in September or as soon as vaccine becomes available. The second dose should be given 28 or more days after the first dose. The first dose "primes" the immune system; the second dose provides immune protection. Children who only get one dose but who need two doses can have reduced or no protection from a single dose of flu vaccine. Two doses are necessary to protect these children. If your child needs two doses, begin the process early, so that children are protected before influenza starts circulating in your community. Be sure to follow up to get your child a second dose if they need one. It usually takes about two weeks after the second dose for protection to begin.
Because flu viruses change every year, the vaccine is updated annually. So even if you or your children got a flu vaccine last year, you both still need to get a flu vaccine this season to remain protected. If October and November slip by, and you haven’t gotten your children or yourself vaccinated, get vaccinated in December or later.