Immunity Page 272
More in Immunity
How Long Is H. Pylori Contagious After Treatment?
H. pylori can still spread after treatment until confirmed eradicated. Learn when you stop being contagious and how to protect others at home.
How Long Does a GI Bug Last? From Days to Months
Most stomach bugs clear up in a few days, but some last weeks. Learn how long viral, bacterial, and parasitic GI infections typically stick around.
What Is High Fever in Adults and When to Worry?
Learn what counts as a high fever in adults, what causes it, and which symptoms mean it’s time to seek medical care.
How to Not Get Strep Throat: Habits That Work
Simple, evidence-based habits that can reduce your chances of getting strep throat, plus why some people keep getting it.
What Is Good for the Flu? Treatments That Actually Work
From antiviral medications to hydration and rest, here’s what actually helps when you have the flu and when to seek medical care.
Cholera Symptoms: From Watery Diarrhea to Dehydration
Cholera can cause severe dehydration within hours. Learn what symptoms to watch for, how they differ in children, and when to seek care.
How Long Does It Take to Catch a Cold? A Timeline
From exposure to first sniffle, a cold follows a predictable path. Learn how the virus takes hold and why you’re contagious before symptoms appear.
How Long Can Oral Thrush Last With or Without Treatment?
Oral thrush usually clears in 1–2 weeks with treatment, but timelines vary by age, immune health, and whether you treat it at all.
What Is the Treatment for Norovirus at Home?
Norovirus usually clears up on its own. Learn how to stay hydrated, ease symptoms, and avoid spreading it to others at home.
How to Reduce Allergens in Your Bedroom at Night
Simple changes to your bedding, air quality, and bedroom setup can make a real difference for allergy sufferers trying to sleep better at night.
Is a Cold Sore Herpes? Causes, Spread & Treatment
Cold sores are caused by herpes simplex virus and are incredibly common. Learn how HSV-1 spreads, what triggers outbreaks, and how to treat them.
What Virus Causes the Common Cold: Rhinovirus & More
Rhinovirus causes most colds, but several other viruses can too. Learn what’s behind your symptoms, how colds spread, and what actually helps.
What Are the Main Symptoms of Allergies?
From sneezing and hives to food reactions and anaphylaxis, learn how to recognize common allergy symptoms and tell them apart from a cold.
How Did I Get the Flu? 3 Ways It Spreads
Flu spreads through air, droplets, and surfaces — and the person who infected you may not have even felt sick yet.