FDA autoriza uso de emergencia de medicamentos anti virales, pruebas diagnósticas, en respuesta al brote de la griupe porcina en humanos (Comunicado de noticias), . Rockville, MD: U.S. Food and Drug Administration. 27 de Abril 2009. http://www.fda.gov/bbs/topics/NEWS/2009/NEW02002.html. Acceso 28 Abril 2009.

HHS declares public health emergency for swine flu [news release]. Washington, DC: U.S. Department of Health and Human Services. April 26, 2009. http://www.hhs.gov/news/press/2009pres/04/20090426a.html. Accessed April 27, 2009.