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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.