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Did you know?
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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People about to have surgery must tell their health care providers about all supplements they take.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are more sensory neurons in the tongue than in any other part of the body.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.