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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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The average office desk has 400 times more bacteria on it than a toilet.

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