Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Oct 21, 2025 · Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Unusual COVID-19 symptoms: What are they? - Mayo Clinic
Jun 13, 2024 · COVID-19 can cause a wide variety of symptoms, some more common than others. Learn about how COVID-19 can make you feel.
Long COVID: Lasting effects of COVID-19 - Mayo Clinic
Aug 23, 2024 · COVID-19 can have lasting symptoms that affect many parts of the body. Learn more about the symptoms and effects of long COVID.
COVID-19, cold, allergies and the flu: What are the differences?
Oct 22, 2025 · Coronavirus disease 2019 (COVID-19) can cause many of the same symptoms as the common cold, seasonal allergies and the flu. So how can you tell if you have COVID-19? It may help …
COVID-19 vs. flu: Similarities and differences - Mayo Clinic
Oct 22, 2025 · Coronavirus disease 2019 (COVID-19) and seasonal flu have many similarities and differences. Find out what to know and how to protect yourself from these diseases.
COVID-19 in babies and children - Mayo Clinic
Oct 21, 2025 · Know the symptoms of COVID-19 in children, what to do if your child appears sick and how to keep your family healthy.
Multisystem inflammatory syndrome in children (MIS-C) and COVID-19
Jul 22, 2023 · Overview Multisystem inflammatory syndrome in children (MIS-C) is a group of symptoms linked to swollen, called inflamed, organs or tissues. People with MIS-C need care in the hospital. …
Treating COVID-19 at home: Care tips for you and others
Apr 5, 2024 · COVID-19 can sometimes be treated at home. Understand emergency symptoms to watch for, how to protect others if you're ill, how to protect yourself while caring for a sick loved one and …
COVID-19: Who's at higher risk of serious symptoms?
Apr 30, 2024 · Advanced age and some health conditions can raise the risk of serious COVID-19 (coronavirus disease 2019) illness.
COVID-19 travel advice - Mayo Clinic
Jul 22, 2025 · Many people with COVID-19 have no symptoms or mild illness. But for older adults and people of any age with certain medical conditions, COVID-19 can lead to the need for care in the …