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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Vaccines prevent between 2.5 and 4 million deaths every year.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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