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

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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Summary of events in the killing of virus-infected cells by cytotoxic T cells. Summary of events in the killing of virus-infected cells by cytotoxic T cells.
The three stages of a specific immune response. The three stages of a specific immune response.
A specific human chromosomal landscape A specific human chromosomal landscape
GI endoscopy. (a) Similar to other forms of GI endoscopy, laparoscopy involves the insertion of a sp GI endoscopy. (a) Similar to other forms of GI endoscopy, laparoscopy involves the insertion of a sp
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
Asomatognosia typically involves damage to the right parietal lobe. Asomatognosia typically involves damage to the right parietal lobe.
Video: Normal and abnormal blood pH

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