Health officials say local mosquitoes in Florida spread the disease . Dengue acquired from local mosquitoes is rare in the United States , Florida health officials said , urging residents to take steps such as wearing repellent to protect against mosquito-borne illnesses . Eight dengue cases have been reported in two Florida counties . The virus is not transmitted by mosquitoes, but can be carried on people who are infected with other viruses, such as yellow fever and chikungunya. There are up to 100 million infections annually worldwide , the WHO says .
Health officials say local mosquitoes in Florida spread the disease . Eight dengue cases have been reported in two Florida counties . The virus is not transmitted by mosquitoes, but can be carried on people who are infected with other viruses, such as yellow fever and chikungunya. There are up to 100 million infections annually worldwide , the WHO says .