Coronavirus disease 2019

Posted on by

COVID-19 is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic.

The 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 infected do not develop noticeable symptoms.[11][12] Of those who develop symptoms noticeable 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 imaging), 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. Some people continue to experience a range of effects (long COVID) for months or years after infection, and damage to organs has been observed.[14] Multi-year studies on the long-term effects are ongoing.[15]

COVID?19 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 travel over longer distances, particularly indoors. Transmission can also occur when people touch their eyes, nose, or mouth after touching surfaces or objects that have been contaminated by the virus. People remain contagious for up to 20 days and can spread the virus 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 polymerase chain reaction (RT?PCR),[17][18] transcription-mediated amplification,[17][18][19] and reverse transcription loop-mediated 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 distancing, quarantining, ventilation of indoor spaces, 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 is still symptomatic, managing the disease through supportive care, isolation, and experimental measures.

2,646 thoughts on “Coronavirus disease 2019”

  4. remote gambling usa license, canadian gambling laws
    and uk casino free bonus, or free spin casino no
    deposit united states

    Stop by my website: how many casinos are in tahoe (Edwina)

  5. prepaid visa for online gambling uk, yusaon casino review and australian free pokies games, or top 10 australian online
    casino

    Feel free to visit my webpage :: blackjack rubber roof sealant
    (Rosella)

  8. can you play online pokies in united states for real money, open casino in australia and online casino canada no deposit sign up bonus, or roulette online
    casino australia

    Stop by my web-site: haribo gummy roulettes (Bobbye)

  22. online what does pokies look like, Harrison, australia 5 dollar deposit,
    casino age limit uk and top online pokies and casinos canadian dollars,
    or best online casino to play in united states

  32. free casino cash no deposit usa, 100 united kingdom casino free keep
    online spin winnings and cash poker online canada, or best online pokies free spins no deposit canada

    Check out my web-site: how to cheat on keno machines, Johnie,

Comments are closed.