Health Topics

Find information on health topics
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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.

Press Room

Upper respiratory infection self-care tips

Learn who is at increased risk, and get resources to manage symptoms at home.

November 17, 2022

Hometown Health Blog

Bronchiolitis in children: Understanding cause, symptoms, concerns

For parents, the symptoms of a viral illness are worrisome in infants and young children. Learn about a lower respiratory viral infection called bronchiolitis and symptoms to watch for in children.

January 11, 2024

6 common flu misconceptions

Common myths about the flu may keep you from taking the necessary steps to protect yourself from the illness. Learn the truth about lowering your risk — starting with the annual flu vaccine.

Jennifer Johnson DO By Jennifer Johnson December 22, 2023

Winter wellness: 7 tips for staying healthy during the holidays

Discover strategies for staying healthy during winter festivities. From staying hydrated to conquering stress, you can enjoy the holiday season without compromising your well-being.

Peter Reisner, M.D. By Peter Reisner December 13, 2023

The 5 Ws of healthy hands can help you avoid germs, illnesses

Preventing illness during the cold and flu season starts with the who, what, where, when and why of handwashing. Teach your children about hand hygiene with these tips.

Joslyn Hager, M.D. By Joslyn Hager December 7, 2023

Upper respiratory infection season has arrived

Signs of fall and winter are appearing, temperatures are cooling and cases of flu, strep throat and RSV are increasing. Read four things to know during this year's upper respiratory infection season.

October 2, 2023

At-home COVID-19 tests: What to know about expiration dates, new variants

A Mayo Clinic expert shares what you need to know about expiration dates for at-home COVID-19 tests. Find out if these tests can detect new COVID-19 variants and what to do if the test is positive.

September 20, 2023

Expert answers about new COVID-19 vaccine

The FDA approved a COVID-19 vaccine that targets current variants. A Mayo Clinic expert explains who should get this vaccine and if it can be given at the same time as the annual influenza vaccine.

September 15, 2023

RSV vaccine for moms-to-be and infants

The FDA has approved a vaccine for pregnant women and infants to provide protection against respiratory syncytial virus. Here's what you need to know to protect your family from RSV.

August 28, 2023

Malaria in the U.S.: Mayo Clinic expert offers insight, tips for prevention

The CDC recommends taking steps to avoid being bitten by mosquitoes in areas where malaria outbreaks are reported. Learn how to protect against malaria and vector-borne diseases.

July 20, 2023

West Nile virus: What you need to know

A Mayo Clinic expert shares how to safeguard yourself and your loved ones from West Nile virus, mainly transmitted through mosquito bites. Learn preventive measures you can take to avoid mosquitos.

July 17, 2023

Cleaner air: Another layer of protection from airborne particles

Your lungs work hard. Having clean air helps prevent illness and reduces the transmission of airborne viruses. Here are some ideas for improving the air quality in your home.

Paul Horvath, M.D. By Paul Horvath July 6, 2023

What should you do if you have COVID-19 or flu?

Unsure if you have flu or COVID-19? Symptoms can be similar. Find out what to do, and how to self-manage symptoms and use the Check Symptoms tool.

Muhanad Mohamed, M.D. By Muhanad Mohamed January 30, 2023