Respiratory Viruses Surveillance - SanDiegoCounty.gov
6 days ago · COVID-19 reporting began in August 2020; influenza reporting began in November 2020. The national reporting mandate expired on April 30, 2024. A new mandate goes into effect …
Coronavirus Disease 2019 (COVID-19) | Covid | CDC
Treatment Learn about the types of COVID-19 treatments, symptom management, and recovery.
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Oct 21, 2025 · 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) - World Health Organization (WHO)
Dec 5, 2025 · 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 | Cause, Symptoms, Treatment, & Prevention | Britannica
3 days ago · There is no cure for COVID-19, but individuals can be protected against severe illness through vaccination. Learn about the symptoms, treatment, and prevention of COVID-19.
COVID-19 (Coronavirus Disease 2019) - MedlinePlus
May 20, 2024 · COVID-19 (coronavirus disease 2019) is a respiratory disease caused by a virus. It can be very contagious. Learn about symptoms, prevention, and treatment.
Coronavirus Update - WebMD.com
Regularly updated for everything you need to know about the novel coronavirus (COVID-19). Our coronavirus health center guides you to white house updates, latest health news, cases, tests, and...
COVID-19 - California Department of Public Health
COVID-19 typically affects the nose, mouth and lungs; the first symptoms can feel much like a cold or flu. It can also cause pneumonia or complications in the heart, blood vessels, or other organs.
COVID-19 testing and vaccinations - USAGov
Nov 21, 2025 · See where to get tested for COVID-19 and where to get a COVID-19 vaccination or booster. Find vaccination help if you have a disability.
COVID-19 - Johns Hopkins Medicine
COVID-19 is the disease caused by SARS-CoV-2, the coronavirus that emerged in December 2019. Learn about symptoms, diagnosis, treatment and prevention.