http://health.propeller.com/story/2007/06/27/malaria-causes-symptoms-and-treatment Malaria is a serious disease caused by a parasite. Infected mosquitoes spread it. Malaria is very common throughout the world. In the United States, the main risk is to persons traveling to tropical and subtropical countries where malaria is a problem. http://media-images.nscpcdn.com/media/ns-logo-rss.gif http://www.propeller.com en-us Copyright 2006-2007 Propeller Propeller.com