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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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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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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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There are more bacteria in your mouth than there are people in the world.
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Asthma cases in Americans are about 75% higher today than they were in 1980.