Medical Diseases & Conditions - Mayo Clinic
Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.
World Health Organization (WHO)
Jun 23, 2026 · The United Nations agency working to promote health, keep the world safe and serve the vulnerable.
The world's best hospital - Mayo Clinic
The right answers the first time Effective treatment depends on getting the right diagnosis. Our experts diagnose and treat the toughest medical challenges. The world's best hospital Mayo Clinic is the No. …
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 …
Hypothyroidism (underactive thyroid) - Symptoms and causes
Jun 10, 2026 · Overview Hypothyroidism happens when the thyroid gland doesn't make enough thyroid hormone. This condition also is called underactive thyroid. Hypothyroidism may not cause noticeable …
Maladie à coronavirus 2019 (COVID-19)
Nov 27, 2025 · La COVID-19 est due au coronavirus SARS-CoV-2. Elle se transmet généralement entre personnes en contact étroit. Les vaccins contre la COVID-19 confèrent une protection élevée contre …
Urinary tract infection (UTI) - Symptoms and causes - Mayo Clinic
Learn about symptoms of urinary tract infections. Find out what causes UTIs, how infections are treated and ways to prevent repeat UTIs.
Maladie à coronavirus 2019 (COVID-19) : ce qu'il faut savoir
Mar 28, 2023 · Mise à jour : 14 mars 2023 L’OMS surveille et combat cette pandémie de manière continue. Cette page de questions et réponses sera mise à jour au fur et à mesure que l’on en saura …
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Mar 13, 2026 · 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.
Nouveau coronavirus (2019-nCoV) - World Health Organization (WHO)
Information on COVID-19, the infectious disease caused by the most recently discovered coronavirus.