Zika is spread by mosquitos. They are tough to control. It will bite four or five people at one blood meal. They can breed in the amount of water it takes to fill up a bottle cap or, theoretically, even a drop of water. You have to get rid of maybe 90% of them or more before you protect people.
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Controlling mosquitos is tough. It's not quick; it's not easy. It requires work day in and day out to track where mosquitos are and to apply safely the appropriate mosquito control methods.
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The United States has made remarkable progress in reducing both teen pregnancy and racial and ethnic differences, but the reality is, too many American teens are still having babies.
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I think we didn't recognize how hard it would be to care for someone with Ebola who was desperately ill in the U.S., and how much hands-on nursing care there would be, and we didn't expect two nurses to get infected.
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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 protect Americans.
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At CDC, we work 24/7 to save lives and protect people.
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More than 50 million people around the world died during the 1918-1919 flu pandemic. That's why we have epidemiologists all over the world tracking whether new strains of flu emerge.
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Thanks to malaria elimination efforts in United States in the 1940s, most people in the U.S. today have never had any direct contact with the disease, and most doctors have never seen a case. That success means it's easy to have a relaxed attitude about protecting ourselves.
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Reducing MRSA infections is critical because these bacteria are difficult to treat and are common in healthcare settings, especially among ICU (intensive care unit) patients.