Immunity Page 283
More in Immunity
How Do You Get H. Pylori? Transmission and Risk
H. pylori spreads mainly through close contact and contaminated water, often taking hold in childhood. Learn how transmission works and how to reduce your risk.
Is 100°F a Fever? What the Temperature Really Means
A 100°F temperature sits in a gray zone between normal and fever. Here’s what it likely means for adults, kids, and when to actually do something about it.
How Does a Cold Spread and When Are You Contagious?
Colds spread through the air, surfaces, and touch — often before symptoms appear. Learn when you’re most contagious and how to protect those around you.
How to Treat the Common Cold: What Actually Works
From zinc lozenges to honey for coughs, here’s what the evidence actually says about treating cold symptoms effectively.
What Is Flu B? Symptoms, Spread, and Treatment
Flu B causes the same miserable symptoms as Flu A but behaves a bit differently. Learn who it affects most, how it spreads, and how to treat it.
Is the Bubonic Plague Curable With Antibiotics?
Modern antibiotics can effectively treat bubonic plague, but early diagnosis and prompt treatment are key to a good outcome.
What Causes a Common Cold: Viruses and Risk Factors
Colds are caused by viruses, and your symptoms are actually your immune system fighting back. Learn what raises your risk and why antibiotics won’t help.
How Long Does Flu B Last? A Day-by-Day Timeline
Flu B typically lasts 5 to 7 days, but fatigue can linger longer. Here’s what to expect each day and when to see a doctor.
How to Prevent Seasonal Allergies Before They Start
Get ahead of seasonal allergies with practical steps like early medication, pollen tracking, and home habits that reduce symptoms before they start.
Is a Chest Cold Contagious? Spread, Duration and Risk
Chest colds spread easily, but knowing when you’re contagious and how to protect others can make a real difference.
How Long After Exposure Do Rabies Symptoms Appear?
Rabies symptoms can take weeks or months to appear after exposure. Learn what affects the timeline, what early signs to watch for, and why acting quickly matters.
What Is Considered Flu Season? When It Starts and Ends
Flu season typically runs October through March in the U.S., but timing varies by hemisphere, region, and strain. Here’s what to know before you get vaccinated.
What Causes a Lung Infection? Bacteria, Viruses & More
Lung infections have many causes, from bacteria and viruses to fungi and aspiration. Learn what triggers them and who faces the highest risk.
Is a Vaginal Yeast Infection Contagious?
Yeast infections aren’t STIs, but they can still pass between partners. Here’s what you need to know about transmission and when treatment is needed.