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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.