Coronavirus Infectious Disease-19


October 23, 2021

Coronavirus disease-19 (Corona 19, English: coronavirus disease 2019, COVID-19) or novel coronavirus infection (culture: new coronavirus infection) is a severe respiratory syndrome caused by SARS-CoV-2. The first case was reported in December 2019. As it spread around the world, it became an epidemic. Symptoms of COVID-19 vary, but include fever, cough, headache, fatigue, shortness of breath, and loss of smell and taste. Symptoms appear within 1 to 14 days of being infected with the virus. In particular, one-third of those infected are asymptomatic and do not show any noticeable symptoms. 81% of people who stand out enough to be classified as patients develop mild to severe symptoms, 14% of people develop symptoms such as shortness of breath and hypoxia, and 5% of people develop severe symptoms such as respiratory failure and shock. Occurs. Older adults are more likely to develop severe symptoms, and organ damage has been observed in some people due to COVID-19 exposure long after recovery. Investigations have been ongoing for a long time to further investigate the long-term effects of the disease. The transmission of COVID-19 occurs through breathing and droplet contact with an infected person. The probability of infection is highest when you are close to an infected person, but you can also be infected from a long distance in a room without ventilation or ventilation. Contact with objects touched by an infected person can also cause infection, but it does not contribute significantly to infection. An infected person can spread the virus up to two days before symptoms appear. Symptoms may continue for 10 days in normal cases, and 20 days in severe cases. There are several methods for diagnosing the COVID-19 virus. Standard diagnostic methods are swab detection of viral nucleic acids by real-time reverse transcription polymerase chain reaction (rRT-PCR), transcription-mediated amplification (TMA), or reverse transcription loop-mediated isothermal amplification (RT-LAMP). Preventive measures include physical or social distancing, isolation, ventilation of indoor spaces, washing hands, and wearing a mask. Recently, a vaccine has been developed and is being vaccinated. Also, misinformation was spread on the Internet, causing a lot of damage.


Mainland China

In mid-December 2019, a patient showed symptoms of pneumonia of unknown cause in Wuhan City, Hubei Province, China. Because a preliminary investigation into the pathogen identification and cause of the disease was underway, the Wuhan Municipal Health Commission called it Pneumonia of unknown cause (Chinese: 不明原因肺炎 Booming Yanin Peiyan[*]), and most media generally use the term has chosen According to the Wuhan Municipal Health Commission, the first official report of pneumonia of unknown cause was made on December 31, 2019, and as of that time, there were 27 confirmed cases. referred to the disease as novel coronavirus-infected pneumonia Then, on February 7, the National Health Commission of China issued a notice, and in the afternoon of the next day, the State Council joint prevention and control mechanism announced that the new coronavirus infection was temporarily identified as the new coronavirus pneumonia (Chinese: Yan[*], English: novel coronavirus pneumonia, NCP, cultural language: Pneumonia caused by novel coronavirus infection) held a press conference. .

World Health Organization

On 30 January, the World Health Organization temporarily declared 2019-nCoV acute respiratory disease (2019-nCoV acute

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