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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.
Vaccines prevent between 2.5 and 4 million deaths every year.