Infection with the new coronavirus has a great impact on the body’s immunity, so there are some characteristics of the blood routine. First of all, white blood cells are normal or even decreased after infection, but lymphocytes will continue to decrease, which is not particularly similar to other viral infections, and blood sedimentation and C-reactive protein will also be elevated, showing that the body is an inflammatory response, which also occurs in other inflammatory diseases, but lymphocytes continue to decrease in other viral infections are uncommon, which is still a characteristic feature of the infection of the new coronavirus. The presentation is not a symptom of the new coronavirus infection. Blood tests can be performed in normal hospitals, general hospitals, and even in the community, and it is important to pay attention to and be vigilant when similar reactions are observed. Source: Dr. Yurai