As long as parents agree and doctors agree, relatives can sign. A good vaccine can reduce the number of infectious diseases. Residents living in China have the right to vaccinate against planned immunization according to law, and fulfill the obligation to vaccinate against planned immunization. The government provides free immunization program vaccines to residents. COVID-19 vaccine is not an immunization program vaccine, but only a second-class vaccine. Therefore, residents have no legal obligation to get COVID-19 vaccine. Vaccination in COVID-19 is not a legal obligation, which means that the country may not force vaccination. Because of this, the state follows the basic principle of "informed consent and voluntariness" in the vaccination in COVID-19.