What is the meaning of negative serum antibody of COVID-19? How to prevent COVID-19

I went to the hospital for COVID-19 serum antibody test, and the test result was negative. I don't know much about this. What does a negative COVID-19 serum antibody mean? COVID-19 serum antibody is negative, indicating that there is no COVID-19 infection in the body, and its results are relatively accurate.

What does the negative serum antibody of COVID-19 mean?

The negative serum antibody of COVID-19 means that there is no COVID-19 infection in the body, and its results are relatively accurate. If there is a fever, physical discomfort, or a history of epidemiology during this period, if you are not at ease, you can retest a week later, and the results will be relatively accurate. In order to prevent the occurrence of COVID-19, it is generally necessary to have a COVID-19 serum antibody test every 1-2 weeks.

How to prevent COVID-19

COVID-19 is mainly caused by novel coronavirus. The main routes of novel coronavirus infection are respiratory droplets transmission and close contact transmission. To prevent COVID-19, it is recommended to avoid going out as much as possible, wear masks when going out, and avoid crowded places. The distance between people should be kept at 1-2 meters or more to cut off the possibility of droplet transmission. The virus carried by patients with novel coronavirus is discharged from the body. If no new host is found, it will sink and float on the surface of the object. Therefore, it is recommended to develop the habit of washing hands frequently and cut off the way of contact transmission of novel coronavirus, so as to prevent new coronavirus pneumonia.