TY - BOOK ED - Centers for Disease Control and Prevention U.S. TI - H1N1 flu (swine flu) PY - 2009///- CY - Atlanta, GA PB - Centers for Disease Control and Prevention KW - Influenza A virus KW - Local KW - Virus Diseases KW - Treatment KW - Swine influenza N1 - Title from web page last updated May 5,2009 (viewed May 6, 2009) UR - http://purl.access.gpo.gov/GPO/LPS112251 ER -