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A kid grimaces as they itch their arm, which is red.

Updated on Apr. 15, 2026

9 minute read

What to Do About Eczema

Emily Oster, PhD

In the news

Updated on Apr. 13, 2026

7 minute read

What’s Going on With Measles?

Emily Oster, PhD

multiple dices placed on a pink background

Updated on Mar. 16, 2026

9 minute read

Understanding Risk, Living With Uncertainty

Emily Oster, PhD

A blue box of tissue on a light blue background.

Updated on Mar. 11, 2026

2 minute read

What Is the Contagion Window for RSV?

Emily Oster, PhD

A group of babies listening to ParentData on headphones

Updated on Feb. 9, 2026

8 minute read

Why Kids Get So Many Ear Infections

Emily Oster, PhD

Pregnant woman receiving vaccine shot from doctor
In the news

Updated on Feb. 6, 2026

8 minute read

Your Guide to Vaccines During Pregnancy

Emily Oster, PhD

Child wrapped in blanket sitting on couch next to parent who is reading a thermometer

Updated on Jan. 28, 2026

11 minute read

What Fall Vaccines Should We Get?

Emily Oster, PhD

A person sneezing in cold weather.

Updated on Jan. 9, 2026

7 minute read

Why Is This Flu Season So Bad?

Emily Oster, PhD

Two parents, in bed with their child, who is coughing, take the child's temperature.

Updated on Jan. 9, 2026

7 minute read

When to Treat a Fever

Emily Oster, PhD

A person coughing.

Updated on Jan. 9, 2026

6 minute read

Flu 101

Emily Oster, PhD

A kid getting a bandaid after a vaccine shot
In the news

Updated on Jan. 7, 2026

18 minute read

Your Guide to Childhood Vaccinations Before Age 2

Emily Oster, PhD

A person shows of a bandaid on their arm after a flu shot.

Updated on Jan. 7, 2026

3 minute read

When Is the Best Time to Get a Flu Shot?

Emily Oster, PhD

a parent holding a baby and the nurse is injecting a vaccine to the baby

Updated on Nov. 26, 2025

2 minute read

Should I Space Out My Baby’s Vaccines?

Emily Oster, PhD

Close-up of HFMD blisters on a child's feet.

Updated on Nov. 11, 2025

7 minute read

Everything You Need to Know About Hand, Foot, and Mouth

Emily Oster, PhD

A toddler gets a shot from a doctor

Updated on Oct. 23, 2025

3 minute read

Can My Kid Get a Flu Shot While Sick?

Emily Oster, PhD

A parent looks worried as she talks to a doctor on the phone while placing her palm on the forehead of a sick child.

Updated on Sep. 22, 2025

9 minute read

How Often Do Kids Get Sick?

Emily Oster, PhD