H1N1 Virus Declared a Pandemic

The World Health Organization (WHO) has declared the swine flu pandemic. Read or listen to the story and related information on NPR. On Wednesday, WHO said 74 countries had reported nearly 27,737 cases of swine flu, including 141 deaths [from the AP]. Find more information on H1N1 in the USA at the Center for Disease Control, and GenBank sequences for the 2009 outbreak at the National Center for Biotechnology Information (NCBI).