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Did you know?
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.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
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.
Did you know?
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.