Coronavirus - World Health Organization (WHO)
Jun 26, 2026 · Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and …
COVID-19 symptoms, spread and prevention
Jun 22, 2026 · COVID-19 is a highly contagious disease. Symptoms range from mild to severe. Most people recover within a few days. Some people stay unwell far longer with long COVID. Getting …
Medical Diseases & Conditions - Mayo Clinic
Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.
Coronavirus disease (COVID-19)
Nov 27, 2025 · WHO fact sheet on COVID-19, including information on symptoms, transmission, treatment, prevention, vaccines and and WHO's work in this area.
COVID-19 vaccines: Get the facts - Mayo Clinic
Jun 24, 2026 · Find out about the different types of coronavirus disease 2019 (COVID-19) vaccines, how they work, the possible side effects, and the benefits for you and your family.
Coronavirus (COVID-19) - How do I monitor my symptoms
This fact sheet explains how you can you can monitor your symptoms when recovering from COVID-19.
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.
Pink eye (conjunctivitis) - Symptoms and causes - Mayo Clinic
Jan 10, 2025 · Pink eye is an inflammation of the transparent membrane that lines the eyelid and eyeball. This membrane is called the conjunctiva. When small blood vessels in the conjunctiva …
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Mar 13, 2026 · Overview Coronavirus disease 2019 (COVID-19), is an illness caused by a virus. The virus is called severe acute respiratory syndrome coronavirus 2 or, more commonly, SARS-CoV-2. It …
Coronavirus disease (COVID-19): How is it transmitted?
Dec 23, 2021 · We know that the disease is caused by the SARS-CoV-2 virus, which spreads between people in several different ways. Current evidence suggests that the virus spreads mainly between …