In some nations, such as Cambodia, the threat of dengue hemorrhagic fever is fairly obvious, but travelers should be aware that the disease can be found all over the globe, including the U.S. In recent years, dengue fever has spread rapidly in subtropical and tropical climates. In addition to Cambodia, recent epidemics have been experienced in Costa Rica, India, Malyasia, Thailand, Indonesia, the Philippines and Vietnam. Also, outbreaks have occurred throughout the Western Hemisphere including in the Caribbean islands, Mexico, Puerto Rico and Venezuela. The New York Times (5/13)
