The H1N1 virus has now become the dominant influenza virus around the globe, with high levels and an increase of activity in many regions, the World Health Organization said Thursday.
CNN.com, CNN
Thu, 11/05/2009 - 11:50am
The H1N1 virus has now become the dominant influenza virus around the globe, with high levels and an increase of activity in many regions, the World Health Organization said Thursday.