Dengue fever among U.S. military personnel--Haiti, September-November, 1994.

Since September 19, 1994, approximately 20,000 U. S. military personnel have been deployed to Haiti as part of Operation Uphold Democracy. To monitor the occurrence of mosquitoborne illnesses (including dengue fever [DF] and malaria) among deployed military personnel, on September 19 the U. S. Army established a surveillance system for febrile illness. Before deployment, all military personnel were instructed to take antimalarial chemoprophylaxis, either chloroquine phosphate (500 mg weekly) or doxycycline (100 mg daily). This report summarizes surveillance findings for September 19-November 4.(ABSTRACT TRUNCATED AT 250 WORDS)