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There are approximately 3 million unintended pregnancies in the United States each year.
Vaccines prevent between 2.5 and 4 million deaths every year.
On average, the stomach produces 2 L of hydrochloric acid per day.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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