Receiving a new coronavirus antigen test with two bars, one dark and one light, suggests weak positivity. It is necessary to receive a nucleic acid test to make a clear diagnosis, and quarantine is required if infection with the new coronavirus is confirmed. The presence of one dark and one light in the neocoronavirus antigen test is generally considered to be caused by the patient’s infection with the neocoronavirus for a short period of time, resulting in a low viral load in the organism, and this situation means that the patient may have been infected with the neocoronavirus. However, the patient needs to undergo nucleic acid testing before a definitive diagnosis can be made. It is recommended that patients should undergo nucleic acid testing to confirm whether they are infected with Neocoronavirus, and at the same time, they should pay attention to isolation to avoid infecting others. In addition, New Coronavirus is very dangerous, so patients need to actively receive treatment to avoid serious health effects.