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Mandatory Vaccines for Schools Began in Boston Nearly 200 Years Ago

Preschoolers waiting to be vaccinated for smallpox outside their doctor's office.

Mandatory Vaccines for Schools Began in Boston Nearly 200 Years Ago

Wondering How Safe an Activity Is? This COVID-19 Risk Calculator Will Tell You

How low-risk is this, really?

Wondering How Safe an Activity Is? This COVID-19 Risk Calculator Will Tell You

These 25 Countries Have the Highest COVID-19 Vaccination Rates

GeorgiNutsov/iStock via Getty Images

These 25 Countries Have the Highest COVID-19 Vaccination Rates

The CDC Says You Should Be Heating Your Charcuterie Meats to Avoid Salmonella

You never know what's lurking in your salami.

The CDC Says You Should Be Heating Your Charcuterie Meats to Avoid Salmonella

6 Facts About the Delta Variant and COVID-19

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The Difference Between Dementia and Alzheimer's, Explained

Dementia and Alzheimer's have different meanings.

Why Isn't There a Vaccine for the Common Cold?

This man has never gotten a vaccine for the common cold. He's being a bit dramatic about it.

5 COVID-19 Vaccine Myths, Debunked

Get yours.

11 Vaccine Pioneers You Should Know

American doctor and epidemiologist Jonas Salk, who developed the first vaccine against poliomyelitis, looks on as a colleague gives the injection to a woman.

Coronavirus News Digest

"See you when the pandemic's over!"

Vaccination vs. Immunization vs. Inoculation: What's the Difference?

A medical professional does the vaccination; your body does the immunization.

Quinto Tiberio Angelerio, the 16th-Century Doctor Who Mandated 6-Foot Social Distancing

The Triumph of Death by Pieter Bruegel the Elder, circa 1562.

The National Hotel Epidemic: The Mysterious Disease That Nearly Sidelined James Buchanan on His Inauguration Day

traveler1116/Getty Images

Yes, You Can Reverse a Cavity—Here’s How

Be kind to your teeth.

9 Weird Historical Ways to Ward Off a Plague

People turned to unusual remedies to avoid catching the plague.

How the Polio Epidemic of 1950 Gave Wytheville, Virginia, a 'Summer Without Children'

Reed Counts, Visit Wytheville