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More in Immunity
How to Reduce Fever at Home Fast: Tips and Remedies
Practical ways to bring down a fever at home, from medications and hydration to knowing when it’s time to call a doctor.
What Diseases Do Prairie Dogs Carry to Humans?
Prairie dogs can carry plague, tularemia, and mpox. Learn how these diseases spread to humans and how to stay safe near prairie dog habitat.
How to Deal With Seasonal Allergies and Get Relief
Seasonal allergies don’t have to ruin spring. Learn which treatments actually work, from antihistamines to immunotherapy, and how to combine them effectively.
How Common Is Cat Scratch Fever? Rates & Risk
Cat scratch fever affects thousands of Americans each year. Learn who’s most at risk, how often cats carry the bacteria, and what most cases actually look like.
How Do Ticks Get Lyme Disease: The Mouse Connection
Ticks aren’t born with Lyme disease — they pick it up from white-footed mice. Here’s how the bacteria spreads through wildlife and into ticks.
How to Lower Fever in Adults: Meds, Rest, and More
Learn practical ways to manage a fever at home, from OTC medications and hydration to rest and cooling methods, plus when to seek medical care.
How Did the AIDS Epidemic Start? From Primates to Pandemic
HIV’s origins trace back to primates in Africa, spreading silently for decades before doctors noticed something was wrong in 1981.
What Causes Thrush in Your Mouth: Key Triggers
Oral thrush happens when Candida overgrows in the mouth. Learn which conditions and habits make that more likely, from antibiotics to dry mouth.
How to Ease Strep Throat Pain With Home Remedies
Simple, practical ways to manage strep throat discomfort at home while antibiotics do their job.
What Does Hepatitis B Look Like? Signs & Symptoms
Hepatitis B can cause jaundice, dark urine, and fatigue, but chronic cases often have no visible signs at all. Here’s what to watch for.
What Does Lupus Pain Feel Like From Head to Toe
Lupus pain varies widely across the body, from achy joints and nerve tingling to chest tightness and cold-triggered finger pain. Here’s what it actually feels like.
Viral Sinus Infection: Is It Contagious and for How Long?
Viral sinus infections are contagious, but it’s the virus you spread, not the infection itself. Here’s how long you’re contagious and when it’s safe to rejoin others.
Why Do I Randomly Get Hives? Causes & Triggers
Hives often aren’t as random as they seem. Learn what’s actually triggering your flares and how to spot patterns you might be missing.
How Many People Have Long COVID? U.S. and Global Data
Current U.S. and global estimates of long COVID prevalence, who’s most affected, and what the data says about duration and daily impact.