What is COVID-19?

COVID-19 is caused by the pathological changes of lung tissue caused by coronavirus entering the lung through respiratory tract. COVID-19's symptoms include fever, cough, dyspnea and even respiratory failure, which can lead to death in severe cases. Novel coronavirus, sputum swabs or lower respiratory secretions were detected by fluorescence quantitative PCr, and coronavirus nucleic acid was positive. People who are sickly, old and weak, and have chronic diseases have a higher incidence. Therefore, in our daily life, we should often take part in sports activities to improve our physique and enhance our immunity and disease resistance. Can avoid virus infection.