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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The longest a person has survived after a heart transplant is 24 years.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.