Infectious Diseases
Showing of 22 results
How Many People Will One Sick Person Infect?
One sick person can infect anywhere from 1 to 18 other people, depending on the illness. Learn how vaccines help reduce the spread and the severity of measles, flu and RSV.
New Study: Shingles Vaccine May Offer Dementia Protection
A recent study found that adults who receive the shingles vaccine may be less likely to develop dementia and Alzheimer’s disease.
What to Know About Adenovirus
Learn more about adenovirus, a respiratory virus that causes cold-like symptoms and is the most common cause of pink eye.
Worried About Measles? 5 Common Infections With Similar Symptoms
Many infections can cause a rash that looks like the measles, but they're far less dangerous than the highly contagious virus.
For Your Travel Checklist: Preventing Traveler’s Diarrhea
You can take precautions to reduce your risk, but can’t eliminate it entirely – particularly if you’re traveling to high-risk areas where sanitation practices are different.
Hantavirus Pulmonary Syndrome: A Rare but Serious Viral Illness
Spread by contact with rodent waste and nesting materials, hantavirus can cause serious symptoms like shortness of breath, coughing and severe respiratory distress.
What to Know About the Bird Flu Threat
Bird flu continues to spread, causing outbreaks in chickens and dairy cows. More people are getting infected too, but the threat to humans remains low.
Are We Getting Sick More Often?
Are colds and respiratory illnesses more common than they used to be? Learn about seasonal trends and what’s changed in recent years.