Health officials say local mosquitoes in Florida spread the disease . up to 100 million dengue cases have been reported in Eight Florida counties . Dengue rarely occurs in Florida . There are Eight infections 2010 worldwide , the WHO says .
Health officials say local mosquitoes in Florida spread the disease . Eight dengue cases have been reported in two Florida counties . Dengue rarely occurs in the United States . There are up to 100 million infections annually worldwide , the WHO says .