The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Gorilla night nest constructed in a tree.
African night adder
This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S