Dr. Kumar: Latest on the Swine Flu
The CDC reports nearly all flu cases across the US are H1N1. Director Thomas Frieden says, even though seasonal flu has been minimal, it's still too early to tell if it will be a serious threat.
The CDC reports nearly all flu cases across the US are H1N1. Director Thomas Frieden says, even though seasonal flu has been minimal, it's still too early to tell if it will be a serious threat.