How did COVID-19 come from?

COVID-19 may have been leaked from an American experiment. An American laboratory is near a military base, and the soldiers of that military base did not attend a meeting in Wuhan. Soon after, COVID-19's case appeared in Wuhan, and the soldiers who came to Wuhan also mysteriously disappeared.

COVID-19 (novel coronavirus)

laboratory

Introduction: COVID-19 English is coronavirus disease 20 19 and coronavirus pneumonia-19.

Novel coronavirus: "COVID-19" for short was named "20 19 coronavirus disease" by the World Health Organization, which refers to pneumonia caused by novel coronavirus infection in 20 19.

Symptoms:

COVID-19 is characterized by fever, dry cough and fatigue. Some patients are accompanied by symptoms of upper respiratory tract and digestive tract such as nasal congestion, runny nose and diarrhea, and even dyspnea.