As the number of swine flu cases burgeons in the United States, vaccine is coming online much slower than the government had anticipated. (sciencemag.org)
With a few countries in the Southern Hemisphere reporting a dramatic jump in swine flu cases, the World Health Organization is inching closer to declaring a full - scale, phase 6 pandemic. (sciencemag.org)
The U.S. Centers for Disease Control and Prevention has published new details about swine flu cases in the United States. (sciencemag.org)