Because of the outbreak of human infections from the newly discovered swine influenza A (swine flu) virus, the Department of Health and Human Services (HHS) has issued a formal declaration of a Public Health Emergency (PHE). The PHE is a tool that will facilitate a mobilization strategy in response to the virus and will help HHS launch prevention and mitigation activities. Meanwhile, the National Association of Community Health Centers (NACHC) is closely monitoring the situation and is coordinating with federal agencies and organizations to ensure a timely response. NACHC is also in close contact with health centers in affected states to determine if there is a sharp increase in patients. Direct Relief International (DRI) and Operation USA are among the organizations working with NACHC. Direct Relief is also working with the California Primary Care Association (CPCA) and Santa Barbara County Public Health Department tocoordinate with public health officials statewide on surveillance and official response activities. The Centers for Disease Control (CDC) meanwhile reports 64 cases of confirmed swine influenza in Kanas, New York City, California, Texas, and Ohio.