20.2 C
Washington

Coronavirus disease 2019

Date:

Share:

Coronavirus disease 2019

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.

Subscribe Us

The Dark Attitude

━ more like this

Секреты успешной игры на слотах в Pin Up казино Казахстан

В мире азартных игр слоты занимают особое место, привлекая игроков своим разнообразием и возможностью выиграть значительные суммы. В 2026 году Пин Ап казино Казахстан...

Пин Ап: какие промо-акции стоит ожидать в этом году

В мире азартных игр, онлайн-казино занимает особое место, и одним из самых популярных является Пин Ап. Это заведение предлагает широкий спектр игровых возможностей, включая...

Пинко казино: шитоб ва бехатарӣ дар пардохтҳо

Казиноҳо дар даврони муосир имконоти зиёдеро барои бозигарон фароҳам мекунанд, аммо интихоби казинои дуруст метавонад муаммо бошад. Пинко казино, бо хидматҳои аъло ва пардохтҳои...

Cherish real winnings: steer your finances with iWild Casino insights

Understanding Your Winnings in the Casino Landscape When engaging with online casinos, the thrill of winning is often accompanied by the important task of managing...

Ontgrendel Wereldwijde Jackpots: Jouw Gids voor Buitenland Casino Gokken

Waarom kiezen voor een Buitenland Casino? Nederlandse spelers die op zoek zijn naar een uitgebreider spelaanbod, aantrekkelijkere bonussen en meer flexibiliteit in hun gokervaring, wenden...

5 COMMENTS

  1. Choosing the right mobile solution is important, and snap troid offers a practical option. It ensures consistent performance and easy navigation, making daily tasks simpler and more manageable.

LEAVE A REPLY

Please enter your comment!
Please enter your name here