COVID-19 is a contagious disease caused by the coronavirus SARS-CoV-2. In January 20jin88bet.one20, the disease spread worldwide, resulting in the COVID-19 pandemic.
Theak168app.baby symptoms of COVID‑19 can vary but often include fever,[7] fatigue, cough, breathing difficulties, loss of smell, and loss of taste.[8][9][10] Symptoms may begin one to fourteen days after exposure to the virus. At least a third of people who are inak168app.clubfected do not develop noticeable symptoms.[11][12] Of those who develop symptoms notiks168app.siteceable enough to be classified as patients, most (81%) develop mild to moderate symptoms (up to mild pneumonia), while 14% develop severe symptoms (dyspnea, hypoxia, or more than 50% lung involvement on imaginic88g), and 5% develop critical symptoms (respiratory failure, shock, or multiorgan dysfunction).[13] Older people have a higher risk of developing severe symptoms. Some complications result in death. Soic88me people continue to experience a range of effects (long COVID) for months or years after infection, aic88nd damage to organs has been observed.[14] Multi-year studies on the long-term effects are ongoing.[15]
COVID‑1ic889 transmission occurs when infectious particles are breathed in or come into contact with the eyes, nose, or mouth. The risk is highest when people are in close proximity, but small airborne particles containing the virus can remain suspended in the air and tlr88ravel over longer distances, particularly indoors. Transmission can also occur when people touch their eyes, nose, or mouth after touching surfaces or objects that have blr88een contaminated by the virus. People remain contagious for up to 20 days and can spread the viruslr88 even if they do not develop symptoms.[16]
Testing methods for COVID-19 to detect the virus’s nucleic acid include real-time reverse transcription polr88lymerase chain reaction (RT‑PCR),[17][18] transcription-mediated amplification,[17][18][19] and reverse transcription loop-mediateop88d isothermal amplification (RT‑LAMP)[17][18] from a nasopharyngeal swab.[20]
Several COVID-19 vaccines have been approved and distributed in various countries, many of which have initiated mass vaccination campaigns. Other preventive measures include physical or social distancsi88ing, quarantining, ventilation of indoor spa88vces, use of face masks or coverings in public, covering coughs and sneezes, hand washing, and keeping unwashed hands away from the face. While drugs have been developed to inhibit the virus, the primary treatment SEXXXXX-VNis still symptomatic, managing the disease through supportive care, isolation, and experimental measures.