ATLANTA -- The worst influenza outbreak in recent memory is rapidly spreading across the country and causing vaccine shortages for supermarkets and other providers.
Widespread influenza outbreaks have hit 24 states, up from 13 the week before, the Centers for Disease Control and Prevention here reported at a media briefing on Dec. 11. Cases of the flu have been reported in all 50 states, CDC said.
Vaccine makers produced 83 million doses this year, according to the CDC. Howeve