A female Aedes aegypti mosquito acquires a blood meal on the arm of a researcher at the Biomedical Sciences Institute in the Sao Paulo’s University, in Sao Paulo, Brazil, Monday, Jan. 18, 2016. The Aedes aegypti is a vector for transmitting the Zika virus. (AP)
The little-known virus re-emerged in Brazil in 2015. Cases have been confirmed throughout South and Central America as well as Puerto Rico.
In the U.S., cases have been confirmed in 11 states including three women in Florida; two women in Illinois and a woman in Hawaii who gave birth to a child who contracted the virus and was born with an unusually small head.