U.S. cases of travel-associated Dengue fever reported to the CDC during 2006-2008.

National 06/18/10 cdc.gov: During 2006–2008, an average of 244 confirmed and probable travel-associated Dengue fever cases were identified by ArboNET (a national CDC arboviral surveillance system maintained by CDC’s Arboviral Diseases Branch) or CDCDB (CDC Dengue Branch) annually, compared with an annual average of 33.5 cases (range:13–77 cases) identified during 1990–2005.  Most of this increase

Dengue fever rash

likely resulted from the 2003 addition of Dengue reporting to the ArboNET surveillance system, which supplements CDCDB.  However, a portion of the increase also likely resulted from substantial increases in Dengue incidence throughout subtropical and tropical areas of the world, including the Americas.  During 2006–2008, Dengue outbreaks were reported in numerous countries, including Belize, Brazil, Costa Rica, Cuba, Ecuador, El Salvador, Guadeloupe, India, Madagascar, Martinique, Mexico, Nicaragua, Pakistan, Paraguay, the United States (Puerto Rico, U.S. Virgin Islands), Venezuela, and multiple island nations in the South Pacific. Most U.S. residents become infected during travel to tropical and subtropical areas outside the continental United States, although autochthonous transmission has been documented on multiple occasions since 1980 in Texas, during 2001–2002 in Hawaii, and during 2009–2010 in Florida. (For the complete report, see CDC’s Morbidity and Mortality Weekly Report, June 18, 2010 / 59(23); 715-719. http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5923a3.htm?s_cid=mm5923a3_e )

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