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Corona virus is a virus that causes an infection in the nose, sinuses or throat. There are 7 types of Corona virus, of which 4 are non-dangerous: 229E, NL63, OC43 and HKU1; the other two, MERS-CoV and SARS-CoV, are more dangerous and have caused a global pandemic. Besides, there is a new strain of Corona virus (denoted 2019-nCoV or nCoV, also known as "Wuhan Virus") that is "raging" these days. This is the cause of acute pneumonia, causing thousands of people infected and making the number of deaths constantly increasing day by day.
This is a new virus so humans have never had immunity, including cross-immunity before. Corona virus is a large family of viruses that usually infect animals but sometimes they can evolve and infect humans. When the virus enters the body, it invades into a number of cells and takes over the cellular apparatus (causing specific inflammatory lesions in the airways), and the virus redirects that apparatus to serve it. , create new viruses and infect others. People infected with 2019-nCoV have acute symptoms: cough, fever, shortness of breath, can develop to severe pneumonia, progressive acute respiratory failure and death; Especially in the elderly, people with chronic diseases, immunodeficiency.
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