(CNN)Vaccines and antibiotics have made many infectious diseases a thing of the past; we've come to expect that public health and modern science can conquer all microbes. But nature is a formidable adversary. And Zika is our newest threat, particularly to pregnant women.
New, unfamiliar and mysterious threats to our health are scary. At the Centers for Disease Control and Prevention -- where we identify, on average, one new health threat each year -- we work around the clock with an approach that prioritizes finding out what we need to know as fast as we can to prot...
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