Minors still need to be accompanied by a guardian for the second dose of the new crown vaccine. According to the current regulations, minors need to be accompanied by a guardian whether they are receiving the first or second dose of the new crown vaccine. Because the new crown vaccine may have some adverse reactions, there may be more serious allergic reactions, so must be accompanied by a guardian to sign, but the emergence of more serious situations require special medical behavior, need to have a guardian present to make decisions. If a minor does not have a guardian, the vaccination center will not give the vaccination. So you should pay attention to know in advance before going to vaccination.