Topic: National Center for Immunization and Respiratory Diseases
With polls showing that Americans are concerned about the safety of the swine flu vaccine, government health officials are being dispatched across the US to make the case for vaccination.
10/09/2009 01:00 am
The estimate, released Tuesday, draws on analysis of how viruses operate, as well as their history. But it's a 'possibility' not a prediction, experts caution.
08/27/2009 01:00 am