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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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Medication errors are more common among seriously ill patients than with those with minor conditions.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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There are more sensory neurons in the tongue than in any other part of the body.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.