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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.