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  1. Medical Diseases & Conditions - Mayo Clinic

    Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.

  2. 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 …

  3. 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 …

  4. 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.

  5. 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 …

  6. Symptoms of ARI are often similar regardless of the virus causing illness and therefore testing residents with symptoms is essential to confirm the diagnosis and guide management. Other symptoms: …

  7. Coronavirus: What is it and how can I protect myself?

    Oct 23, 2025 · It is a pandemic illness caused by a coronavirus. The virus that causes COVID-19 is severe acute respiratory syndrome coronavirus 2, shortened to SARS-CoV-2 and it began spreading …

  8. Coronavirus disease (COVID-19)

    Mar 28, 2023 · Symptoms of severe COVID‐19 disease which need immediate medical attention include: difficulty in breathing, especially at rest, or unable to speak in sentences confusion …

  9. میں COVID-19 کی علامات پر کیسے نظر رکھوں؟

    This fact sheet, in Urdu, explains how you can you can monitor your symptoms when recovering from COVID-19.

  10. Unusual COVID-19 symptoms: What are they? - Mayo Clinic

    Jun 13, 2024 · Symptoms of COVID-19, also known as coronavirus disease 2019, can vary widely. And over time, how often people have a COVID-19 symptom may change. Symptoms may depend on …