Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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Excessive alcohol use costs the country approximately $235 billion every year.
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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.
Survivorship curve for the North American beaver.
The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal
Symbolic language may have helped reinforce exclusive sexual relationships within social groups in l