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CoVID -19 is an acute respiratory infectious disease ; People are prone to i Т ec П on generaly Currently , the main cause of coID -19 infection is contact with someone who is already infected with the SARS - CoV -2, and asymptomatic infected people may aso tensmit the virus , Studies have shown that symptoms of infection generaly appear within 14 days , with most occurring within 3 to 7 days after infection . The main symptoms are fever ,fa0gue, loss of smel or taste , and a dry cough . In some cases , a stuffy nose , runny nose , muscle pain and d í arrhea can also occur.