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Syringe and vaccine vial on a dark background
In the news

Updated on Sep. 20, 2025

7 minute read

What’s Happening to the MMRV, Hepatitis B, and COVID Vaccines?

Emily Oster, PhD

Vaccine being loaded in the syringe.

Updated on Sep. 16, 2025

6 minute read

Fact Check: Vaccine Studies

Emily Oster, PhD

A baby being tested for fever

Updated on Sep. 15, 2025

9 minute read

Everything You Need to Know About Febrile Seizures

Emily Oster, PhD

A child playing with a bottle of pills
In the news

Updated on Aug. 8, 2025

2 minute read

Does Vitamin A Prevent Measles?

Emily Oster, PhD

A tick on a leaf

Updated on May 29, 2025

9 minute read

A Decision Tree for Ticks and Lyme Disease

Emily Oster, PhD

baby hand washing with parent

Updated on Apr. 1, 2025

9 minute read

Yes, You Really Do Need to Wash Your Hands

Emily Oster, PhD

A parent holds the back of her palm to her child's forehead while the child sleeps in bed. In the other hand, the parent holds a thermometer that reads "hi"

Updated on Mar. 31, 2025

8 minute read

Everything You Need to Know About Norovirus

Emily Oster, PhD

Illustration of different forms of conjunctivitis

Updated on Mar. 11, 2025

6 minute read

Pink Eye 101

Emily Oster, PhD

A gray knit bear on a pink background has a thermometer under its arm.

Updated on Feb. 25, 2025

1 minute read

How Often Is Normal for My Kid to Be Home Sick?

Emily Oster, PhD

kid sitting on couch cleaning nose with tissue

Updated on Feb. 18, 2025

2 minute read

Does Zinc Help with Immunity?

Emily Oster, PhD

A person holding a chicken in a lab wearing gloves

Updated on Jan. 29, 2025

8 minute read

What You Need to Know About Bird Flu

Emily Oster, PhD

A parent combs a child's long hair with a lice comb, and examines the comb in the light.

Updated on Jan. 20, 2025

8 minute read

Pinworms, Lice, and Itching

Emily Oster, PhD

A close up of a polio vaccine and stethoscope.

Updated on Jan. 13, 2025

2 minute read

Should I Be Worried About My Kids Getting Polio?

Emily Oster, PhD

An arrangement of tissue boxes, used tissues, and a cup of hot tea against a pink background.

Updated on Jan. 8, 2025

2 minute read

Is It Better to Blow My Nose or Wipe It?

Emily Oster, PhD

a jar full of raw milk under the cow

Sep. 23, 2024

7 minute read

Is It Safe to Drink Raw Milk?

Emily Oster, PhD

A young child touches probiotic pills while holding a glass of water.

Aug. 28, 2024

8 minute read

The Data on Kids and Probiotics

Emily Oster, PhD