In Florida, four possible non-travel-related cases of Zika virus are being investigated by health officials.
The state Department of Health said on Wednesday that two of the four cases are in the Miami-Dade County while the other two are in Broward County.
According to CNN, none of the four individuals affected by the virus had visited Zika-affected areas. However, sexual transmission is being considered to be one of the scenarios.
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The current revelation is authenticating concerns that the virus is taking hold in the United States. As of now, the Centers for Disease Control and Prevention said that the virus is not being distributed by mosquitoes in the continental U.S.
However, the CDC stated that some mosquitoes also have the potential to carry the virus. These mosquitoes have been located in certain regions.
“We are looking into other modes of transmission. We’re conducting this investigation as we would other mosquito-borne viruses, such as dengue (fever),” communications director for the Florida Department of Health, Mara Gambineri, wrote in an email sent to CNN.
Residents are asked by health officials to provide urine samples and other information. A door-to-door inquiry is being conducted to determine how many people are infected with the virus.
Since 80% of the infected people exhibit zero symptoms, it is possible that someone could be infected without knowing, said Independent.
It was reported that around 1,400 people in the U.S. have acquired travel-related infections. Majority of the reports come from people who had traveled to areas in Latin America or the Caribbean, where the virus is dangerously present.
“Evidence is mounting to suggest local transmission via mosquitos is going on in South Florida,” senior press officer at the Centers for Disease Control and Prevention Tom Skinner stated in an email.
According to him, Zika virus cases are similar to transmission patterns of mosquito-distributed diseases like chikungunya, which was present in South Florida.