A Cuban worker fumigates to prevent dengue fever and other mosquito-transmitted diseases in Old Havana.
A Cuban worker fumigates to prevent dengue fever and other mosquito-transmitted diseases in Old Havana. Dado Galdieri / AP
A Cuban worker fumigates to prevent dengue fever and other mosquito-transmitted diseases in Old Havana. Dado Galdieri / AP

Tropical disease headed toward U.S., health officials warn

January 14, 2008 06:00 AM

UPDATED January 10, 2008 06:22 PM

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