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There are approximately 3 million unintended pregnancies in the United States each year.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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