A rather reluctant-looking girl is given an injection of vaccine

What Makes Vaccine Mandates Legal?

Historically, the Supreme Court has held that forgoing vaccines is a threat to public health and therefore beyond the bounds of liberty.
Concept image of people rejecting a vaccine injection

Why Do Vaccination Rates Plateau?

Two experts discovered a paradox that can lead people to think disease isn't a problem.
Businesspeople working and maintaining social distance on a sofa in a modern office

Here’s Why the CDC Recommends Indoor Masks for the Vaccinated

The CDC guidance applies to areas with high coronavirus transmission rates.
An anti-vaccination pamphlet from 1911, a rally of the Anti-Vaccination League of Canada, 1919, and an Anti-Vaccination Society of America advertisement from 1902

Vaccine Hesitancy in the 1920s

As Progressive Era reforms increased the power of government, organized opposition to vaccination campaigns took on a new life.
An illustration of a woman experiencing information overload

ADHD: The History of a Diagnosis

Attention deficit hyperactivity disorder has been a controversial diagnosis since it was first described, back in the 1940s.
An advertisement for Burdock Blood Bitters

The Bitter Truth About Bitters

A bottle of bitters from about 1918 had significant amounts of alcohol and lead—and not a trace of the supposed active ingredient.
Ascaris worms, a group of parasitic nematode worms, also known as small intestinal roundworms.

How Archaeologists Use Parasites to Track Urbanization

Historical patterns of parasitic infection show up differently depending on the class status of a neighborhood.
Nurses withdraw blood for testing from a volunteer taking part in the AIDSVAX B/E vaccine trial July 18, 2002 at the Boon Mee Clinic in Bangkok, Thailand.

RV144: The Largest HIV Vaccine Trial in History

One of the biggest advances in AIDS vaccine research was a controversial, landmark treatment that tested a new vaccine on 16,000 Thai volunteers.
C. Buddy Creech

C. Buddy Creech: Your Vaccine Questions Answered

Vaccinologist C. Buddy Creech on getting vaccinated, racial disparities, and the lessons we’ve learned after a year of COVID-19.
This 1964 poster featured what at that time, was CDC’s national symbol of public health, the “Wellbee”, who here was reminding the public to get a booster vaccination.

How Three Women Led the Fight against Pertussis

As whooping cough killed thousands of kids annually, a trio of public health workers were deeply involved in the production and distribution of a vaccine.