dr. tesh: until the virus really got to brazil and there was a lot of cases, nobody was really interested in zika." omar: "times have changed" dr. tesh: times have changed and now times have changed and we realize how much we don't know" baby crying zika may be linked to the birth defect microcephaly. the condition is marked by abnormally small heads in babies due to stunted brain growth. brazil is ground zero in the fight against zika. "we got to see the people that were being effected..." where doctor shannan rossi recently traveled and saw first hand.the devistating effects of the virus. "it's heartbreaking and its critical i think." machine whirring the univeristy of texas medical branch is home to one of the worlds largest collection of viruses...nearly 7-thousand samples are stored at the facility. with the focus now on zika, rossi and a team of scientists are working on a quick test to detect the virus in humans, and eventually develop a vaccine. omar: "are we closer to a vaccine?"
. >> dr. robert tesh at galveston has known about it since the 1960s. >> until the virus got to brazil and there was a lot of zika. >> times have changed. >> times have changed and we realize how much we don't know. >> zika may be linked to the birth defect which is marked by babies due to stunted brain growth. brazil is ground zero in the fight against zika. where dr. shannon rossie recently traveled and saw first hand. >> it's heart breaking and critical i think. >> the university of texas medical branch is home to the world's largest collection of viruses. nearly 7,000 samples are stored at the facility. with the focus on zika rossie and other scientists are working to develop a vaccine. >> yes. every single day that people like me and my colleagues are on the bench we are one step closer to a vaccine. >> the national institute of health says there could be a vaccine by the end of 2017. cbs news galveston, texas. >>> time to talk the weather. a big story with the snow falling in some areas
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