Flu Vaccines More Effective for Children Than for Adults
So far, 114 children in the U.S. have died from influenza or a flu-related illness, and the flu season is not yet over.
Most of those children had not been vaccinated against the virus, Dr. Anne Schuchat, acting director of the Centers for Disease Control and Prevention, said.
In her testimony Thursday before a House of Representatives subcommittee, Schuchat said that although this year’s vaccine effectiveness was relatively low — the CDC’s preliminary survey shows it is 36 percent effective overall — its effectiveness in children is much higher, at 59 percent.
When asked why, Schuchat acknowledged that infectious disease specialists don’t know, but she offered two theories.
“One is, children’s immune response is often better than adults, particularly better than older adults. A second is your response to an influenza vaccine may differ when it’s the first time you’ve been exposed to influenza or the vaccine,” she said.
Source: VOA News