(CNBC) — The outbreak of the mosquito-borne Zika virus in Brazil and other South American countries has raised concerns that the virus could possibly spread throughout the United States.
Cases among travelers returning to mainland U.S. have already been reported and these instances are seen increasing by the U.S. Centers for Disease Control and Protection, which warned last week that imported cases could cause the virus to spread in some areas of the country.
The latest cases of the Zika virus were reported in Arkansas, California and Virginia. In these instances, the residents who had tested positive for the virus had recently traveled outside the country.
Advertisement - story continues below