Aedes aegypti mosquitoes are seen in a mosquito cage at a laboratory in Cucuta, Colombia, in this file photo dated Feb. 11, 2016. An experimental vaccine for the Zika virus is due to begin human testing later this year, after getting the green light from U.S. health officials.
Aedes aegypti mosquitoes are seen in a mosquito cage at a laboratory in Cucuta, Colombia, in this file photo dated Feb. 11, 2016. An experimental vaccine for the Zika virus is due to begin human testing later this year, after getting the green light from U.S. health officials. Ricardo Mazalan AP File
Aedes aegypti mosquitoes are seen in a mosquito cage at a laboratory in Cucuta, Colombia, in this file photo dated Feb. 11, 2016. An experimental vaccine for the Zika virus is due to begin human testing later this year, after getting the green light from U.S. health officials. Ricardo Mazalan AP File

Paid volunteers would be infected with Zika for vaccine studies

August 22, 2016 9:40 PM