To Stop Zika, Aedes Aegypti Mosquito Must Be Controlled

Scientists are in a race against time. The World Health Organization estimates that as many as 4 million people could be infected with the Zika virus by the end of the year and, of course, the biggest fear is the virus's link to birth defects. As VOA's Carol Pearson reports, the only way to stop the virus is to kill or change the mosquito that carries the virus.