Coronavirus disease 2019, or COVID-19, is a contagious disease caused by a virus, the severe acute respiratory syndrome coronavirus 2, or SARS-CoV-2. The first known case was identified in Wuhan, China, in December 2019. The disease quickly spread worldwide, resulting in the COVID-19 pandemic.
Symptoms of Covid are variable, but often include fever, cough, headache, fatigue, breathing difficulties, loss of smell, and loss of taste. Symptoms may begin one to fourteen days after exposure to the virus. At least a third of people who are infected do not develop noticeable symptoms. Of those people who develop symptoms noticeable enough to be classed as patients, most develop mild to moderate symptoms, up to mild pneumonia, while 14% develop severe symptoms, such as dyspnoea, hypoxia, or more than 50% lung involvement on imaging. About 5% develop critical symptoms, like respiratory failure, shock, or multiorgan dysfunction.
Older people are at a higher risk of developing severe symptoms. Some people continue to experience a range of effects, called long COVID for months after recovery, and damage to organs has been observed. Multi-year studies are underway to further investigate the long-term effects of the disease.
This site is dedicated to tracking the spread of the 2022 Covid virus, and is updated every few hours. You can view the countries listing page for a more detailed breakdown. You can follow us on Twitter for more updates.
Data is sourced from Our Wold in Data. This website is a hobby project and is not owned by BNO News, but we do work together to source case information. Should you identify any inconsistencies in the data or have additional information or questions, please get in touch via Twitter.