A study conducted by Children's Hospital and Regional Medical Center shows that many children hospitalized for influenza had already been in the hospital at least once before during a flu season, which would have been a good time to vaccinate them against the virus. The national study, published in the February 2008 issue of Pediatrics, suggests that providing flu shots for children who happen to be in the hospital during flu-vaccine season could help prevent more hospitalizations and complications from the flu.