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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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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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