Because the first thing this virus attacks is the human lungs, du, and the lungs are the main respiratory apparatus.
Therefore, if the lung is injured, it is easy to cause poor breathing, so in the early stage, the breathing will not be smooth. However, the upper respiratory tract and lungs are reasonable, which will naturally cause cough.
As a result, many people do not realize the severity of the disease in the early stage and treat it as a cold. The result is worse and worse.
And it doesn't have to cause a high fever, and the average flu gets a high fever because bacteria attack the lungs, so the difference between the two is that COVID-19 is a viral infection, and influenza is a bacterial infection.
And we humans don't have an effective response to the virus.
Therefore, if you find yourself with these symptoms at this special time, you should not take any chances. Especially if you have a fever, you should go to the fever clinic for screening. After all, if it is COVID-19, the sooner the better.
Because this acute disease increases the risk by one more day.
Because viruses are tenacious, the best way to deal with them is not to have direct contact with them.
Therefore, it is the best policy to protect the whole people.