The announcement that the United States might have discovered its first cases of locally-transmitted Zika virus, and concerns raised by some of the athletes headed to the Olympic Games in Rio, are renewing fears about the disease, which the United Nations' health agency declared a 'public health emergency of international concern' in February 2016.
You are here
SALVADOR, Brazil - When 30-year-old Greicy Alves was diagnosed with Zika in her first trimester, it did not seem like a big deal. The disease was widely considered to be mild. But by the time her son, Gabriel, was born, Zika had been declared global health emergency.