Currently, the Covid-19 epidemic is raging all over the world, especially in the US and China. The epidemic spreads rapidly, the medical staff could not control it so that the number of people infected was in the thousands a day. vi-rut named corona or ncovi originated from Wuhan, China in December last year. This virus has claimed the lives of many people and has entered people's lungs, causing acute respiratory infections. The patient will exhibit cough, fever, and shortness of breath for a few days. To prevent this, please comply with all precautions set by the World Health Ministry, such as restricting going out, wearing a mask, hand sanitizer, ... and finally leaving the world as peaceful as before. Let's all join us together, helping to fight back the epidemic.

Reported symptoms include fever in 90% of cases, [10] fatigue and dry cough in 80% of cases, [10] [132] 20% with shortness of breath and respiratory failure in 15%. [ 94] [132] [133] Chest x-rays revealed markers in both lungs. [94] [133] Survival was generally stable at the time of admission of the patients. [132] Blood tests often show a low white blood cell count (leukopenia and lymphopenia). [10] Many patients may also experience skin manifestations, especially the toes [134] [135]

However, according to the Centers for Disease Control and Prevention (CDC), 25% of people may have no symptoms [136] [137] or symptoms are not clear.