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.
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.
Pink eye (conjunctivitis) - Symptoms and causes - Mayo Clinic
Jan 10, 2025 · Pink eye is the inflammation or infection of the transparent membrane that lines your eyelid and eyeball. Typical symptoms include redness and a gritty sensation in your eye, along with …
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 …
Respiratory syncytial virus (RSV) - Symptoms & causes - Mayo Clinic
Oct 4, 2023 · Signs and symptoms of respiratory syncytial virus (RSV) infection most commonly appear about four to six days after exposure to the virus. In adults and older children, RSV usually causes …
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.
Influenza (flu) - Symptoms and causes - Mayo Clinic
Dec 19, 2025 · Muscle aches. Feeling very tired. Sweating and chills. In children, these symptoms may show up more generally as being fussy or irritable. Children also are more likely than adults to have …
7 signs and symptoms not to ignore - Mayo Clinic
Feb 1, 2025 · Fever seems to play a key role in fighting infection. Persistent fever can mean you have an infection, including COVID-19. If you have a fever and other symptoms, such as cough and …
Myocarditis - Symptoms and causes - Mayo Clinic
Jun 4, 2024 · Flu-like symptoms such as headache, body aches, joint pain, fever or sore throat. Sometimes, myocarditis symptoms are like symptoms of a heart attack. If you are having …
Human metapneumovirus (HMPV): Symptoms and prevention
Feb 19, 2025 · Human metapneumovirus (HMPV) is a seasonal virus that causes respiratory illness worldwide. Explore symptoms and ways to prevent infection.