vaccination

Inoculation with weakened or dead microorganisms to develop immunity and prevent disease caused by the regular strain of that microorganism.

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Last Updated

October 7, 2025

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Breech baby
What Can I Do if My Baby is Breech?
Right before birth, most babies are in a headfirst position in the mother’s uterus. Sometimes, the baby is in a bottom-first (or feet-first) position. This is called a breech birth or breech ...
A family doctor giving a vaccine to an older patient.
Vaccine Facts: What You Need to Know
It can be hard to know what to believe about vaccines. There’s a lot of information out there—especially in the age of social media—and not all of it is accurate. Having clear, trustworthy facts ca...
Cognition
Original Medicare vs. Medicare Advantage: What you need to know 
Medicare is the federal health insurance program in the United States. It’s available to everybody aged 65 and older, and it’s also available to younger individuals with disabilities. There are mul...