Health Topics
Find information on many health topics, listed A to Z.
COVID-19 Vaccine
In The News
From The Blog
Mayo Clinic App makes managing health care a breeze
College student Lucas Anderson found that using Patient Online Services on the Mayo Clinic App made it easy for him manage his health care.
Emergency departments not for COVID-19 testing
If you need to test for COVID-19, Mayo Clinic health experts remind you not to go to the emergency department as it is for patients with life-threatening needs.
How to decide which mask is best for you
Several mask options can help slow the spread of COVID-19. A Mayo Clinic expert demonstrates how to properly wear these masks.
Tips for at-home COVID-19 care
When you become infected with COVID-19, what are you supposed to do? If you are experiencing mild symptoms, follow these tips.
COVID-19 booster vaccination for 12- to 15-year-olds
The Food and Drug Administration amended its emergency use authorization for the Pfizer COVID-19 vaccine to expand the use of a single booster dose to 12- to 15-year-olds. Here's what you need to know.
Types of COVID-19 tests, when to use them
You may have questions about differences in the types of COVID-19 tests available and when to use them. A Mayo Clinic expert breaks down the testing options and explains how they work.
Don't delay getting your child vaccinated for COVID-19
With the emergence of the delta and omicron variants, it's more important than ever to protect children with a vaccine. Read about one family's decision to have their son vaccinated, and learn how to schedule your child's appointment.
State of COVID-19 pandemic with omicron variant
Researchers continue to monitor the COVID-19 omicron variant. A Mayo Clinic expert offers insight into what the emergence of omicron says about the current and future state of the COVID-19 pandemic.
COVID-19 booster vaccine for teens
The Food and Drug Administration and Centers for Disease Control and Prevention have authorized Pfizer COVID-19 booster vaccinations for 16- and 17-year-olds. Here's how to schedule your teen's appointment.
COVID-19 vaccines important with omicron variant
Research studies have shown three doses of the Pfizer COVID-19 vaccine neutralized the omicron variant, while two doses reduced severity. A Mayo Clinic expert provides detail and stresses the importance of getting vaccinated.
Where to find proof of COVID-19 vaccination, test results
Need to show proof of your COVID-19 vaccination and tests? Learn how to use your Patient Online Services account or the Mayo Clinic app to access proof.
Omicron transmissibility and virulence: What do these terms mean?
Cases of COVID-19 caused by the omicron variant have been detected in the U.S. Medical experts discuss its transmissibility and virulence. A Mayo Clinic infectious diseases expert explains what those terms mean.