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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.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.