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Did you know?
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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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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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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There are more bacteria in your mouth than there are people in the world.