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Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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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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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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

Normal and sickle-cell hemoglobin. (a) Subtle differences between the conformations of hemoglobin A Normal and sickle-cell hemoglobin. (a) Subtle differences between the conformations of hemoglobin A
Normal bone versus bone with osteoporosis. Normal bone versus bone with osteoporosis.
Normal Recommended Daily Intakes for Calcium Normal Recommended Daily Intakes for Calcium
Normal DNA vs Italian DNA Normal DNA vs Italian DNA
Cancerous cells versus normal cells Cancerous cells versus normal cells
The traditional human karyotypes derived from a normal female and a normal male The traditional human karyotypes derived from a normal female and a normal male
Video: Heart Chambers

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