How to Swab For Covid Test?
After virus infection, the human body has a certain value-added period. When testing, if the virus in the body does not reach a certain concentration, we may not detect the virus.
When the specimen was collected, due to the different sampling methods, no virus cells were collected. False-negative specimens can also lead to inaccurate collection results.
Errors in the transportation process and storage of samples for inspection will also affect the results of nucleic acid testing.
