Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Oct 21, 2025 · The virus that causes COVID-19 spreads between people in close contact. Most commonly, it spreads through the air in tiny droplets of fluid. Many people with COVID-19 have mild …
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.
Enfermedad del coronavirus 2019 (COVID-19) - Mayo Clinic
Oct 21, 2025 · La enfermedad del coronavirus 2019 (COVID-19) es causada por el virus SARS-CoV-2. Obtén más información sobre los síntomas, los riesgos y las formas de protegerte.
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.
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, 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 diagnostic testing - Mayo Clinic
Jul 18, 2024 · Why it's done In the U.S., you might need a COVID-19 diagnostic test if: You have COVID-19 symptoms, such as fever, cough, tiredness or shortness of breath. If you have symptoms, …
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.
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.
Sars-cov-2 (covid-19) vaccine, mrna (pfizer) (intramuscular route)
Jan 1, 2026 · SARS-CoV-2 vaccine, mRNA (Pfizer) is used as an active immunization to prevent COVID-19 caused by the SARS-CoV-2 virus. It is also used in patients 5 years of age and older who …