Find information on many health topics, listed A to Z.
Infectious Diseases
Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful, but some organisms under certain conditions may cause disease.
What does it mean to move from pandemic to endemic, and is society there yet? Get the latest COVID-19 information and learn what life will be like following the pandemic.
Vaccination continues to be a safe, effective way to prevent serious illness and hospitalizations from COVID-19. Here's what parents of children ages 5–11 need to know.
While you're enjoying the outdoors, ticks are looking for a ride — and a meal. Ticks survive on blood from humans and animals, and can transmit disease. Learn how to tame these unwelcome hitchhikers.
Because of an elevated, but low, risk of blood clots associated with the J&J COVID-19 vaccine, the FDA has limited its use. A Mayo Clinic expert explains what the latest recommendation means for you.
If you've ever had chickenpox, you may be susceptible to shingles. This common condition causes a painful, blistered rash. Learn about prevention and treatment.
One symptom of post-COVID syndrome is described as "brain fog." Learn what you can do if you have short-term memory loss, confusion and difficulty concentrating after a COVID-19 infection.
The drop in COVID-19 cases may lead you to think the pandemic is ending. While stats are headed in the right direction, an infectious diseases expert explains why it's too early to say it's over.
The Centers for Disease Control and Prevention issued interim recommendations for a shortened interval to the booster, or fourth, dose of mRNA vaccines for immunocompromised people among other updates. Get the details.
If you're planning a winter vacation, you'll need to know how the COVID-19 pandemic affects your plans. Follow these guidelines to safely enjoy your time away.
Children are once again facing disruption to daily routines due to COVID-19 cases surging. Get advice on how to support kids having difficulty coping with the changes.