Vaccination is not recommended for asymptomatic infected persons. An asymptomatic infected person is one who has been infected with the pathogen and is in a state of infection, but does not have the typical complications of infection, and is therefore called asymptomatically infected. In addition to the absence of typical complications and associated infectiousness, the viral load and state of infection of asymptomatic infected persons are similar to those of infected persons. Vaccines inject attenuated or inactivated pathogens directly into the body, thereby stimulating the immune system to produce appropriate antibodies. In asymptomatic patients, the virus and a small amount of antibodies already exist in the body, so vaccination does not play a relevant preventive and protective role for asymptomatic patients, but will stimulate the immune system to produce immune stress. Asymptomatic infected people are usually found to have positive nucleic acid results. Once you find out that you have a positive nucleic acid result, you should be temporarily isolated, contact the CDC, wait for healthcare workers to come to your home to perform further operations, and avoid contact with other people or take public transportation to seek medical treatment.