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The longest a person has survived after a heart transplant is 24 years.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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