It is a general viral disease, which means that it can be transmitted from animal to human and vice versa, and this indicates that it is a virus that transcends different races and types of living organisms.

The disease is characterized by wide and different clinical symptoms from one patient to another, their severity and types depend on the type of organ or tissue that the virus infects and the physiological condition, age and immune status of the patient.

At the end of a year 2019, the Coronavirus infection spread very quickly in the suburbs of Wuhan chine’s city and infected large numbers of city dwellers, it was characterized by symptoms that differ from person to person in severity, nature and duration, which led to death in many cases of severe infection.

The rapid spread of the virus surprised researchers, doctors, the health community, and citizens in Wuhan and China in general Which provoked and instilled the spirit of challenge among scientists, researchers and those interested in health care in China to search and investigate the cause of all these infection and the rapid spread and deaths that occurred so quickly, finally that their investigation ended with the diagnosis of Corona virus (SARS cov2) as the cause of this pandemic that began in the Chinese city of Wuhan.