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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.