Health officials have identified two women and three men who appear to have contracted Zika within an area that includes Miami's Little Haiti neighbourhood. Officials say three live in the area; two others work there or have visited.
Florida's Department of Health says there are now two areas in Miami where Zika is being transmitted. The other is Miami Beach, where authorities have aggressively worked to control mosquitoes since August. Those efforts included aerial spraying with a controversial insecticide, Naled. Last month, the zone of local Zika transmission in Miami Beach was tripled in size after new cases were identified.
South Florida is the only place so far in the continental U.S. with local Zika transmission. The CDC advises pregnant women to avoid non-essential travel to areas where Zika has been transmitted locally.
At least 174 people have contracted Zika in Florida, a number that includes 19 out-of-state visitors. Florida also has more than 700 cases of Zika contracted while travelling elsewhere. The only state with more travel-related Zika cases is New York, with more than 850. Florida's Department of Health says 106 Zika infections in the state involve pregnant women.