Immunity Page 253
More in Immunity
How Old Do You Have to Be to Get the COVID Vaccine?
COVID vaccines are approved for most ages, including young children. Learn about age limits, dosing differences, and consent rules for minors.
Oral Thrush in Adults: Treatments and Home Remedies
Learn how to identify oral thrush, what causes it in adults, and how medical treatments and home remedies can help clear up the infection.
How to Get Rid of a Fever Without Medicine: 6 Tips
Simple, drug-free ways to manage a fever at home, plus when it’s time to seek medical care.
How Many People in the US Have HIV or AIDS?
Around 1.2 million people in the US are living with HIV. Here’s what the data shows about who’s affected, treatment gaps, and AIDS-related deaths.
What Is the Difference Between Cold and Flu?
Colds and flu feel similar but differ in cause, severity, and treatment. Learn how to tell them apart and when to seek medical care.
How to Tell If a Cold Is Viral or Bacterial
Green mucus, fever, sore throat — learn what actually signals a bacterial infection versus a common viral cold, and when antibiotics are truly needed.
Why Is There a Ball in My Armpit? Causes Explained
An armpit lump is usually harmless, but knowing the common causes—from swollen lymph nodes to cysts—can help you decide when to see a doctor.
How Do You Know If You Have a Yeast Infection?
Learn the key symptoms of a yeast infection, how to tell it apart from other infections, and when to see a doctor.
How to Make Hand, Foot and Mouth Go Away Faster
Hand, foot and mouth can’t be cured, but the right care can ease symptoms and help kids feel better sooner. Here’s what actually helps.
What Is the Difference Between a Cold and the Flu?
Colds and the flu share some symptoms, but differ in severity, risk, and treatment. Here’s how to tell them apart and when to seek care.
How Long Is Thrush Contagious After Starting Medication?
Thrush isn’t very contagious, but timing matters during treatment. Learn when transmission risks are highest and how to avoid passing it on.
How Can I Tell If I Have a Yeast Infection?
Learn the common signs of a yeast infection, how to tell it apart from BV, and when you should see a doctor.
How Long Does It Take for Rabies to Kill You?
Rabies progresses slowly at first, then quickly becomes fatal once symptoms appear. Here’s what happens in your body and why timing is everything.
What Are COVID-19 Symptoms and Warning Signs?
Learn to recognize COVID-19 symptoms, how they differ from a cold or flu, what to expect with newer variants, and when to seek emergency care.