Aged 1 COVID-19 1 COVID-19 Vaccines 1 Drug-Related Side Effects and Adverse Reactions Humans 1 MIS-A 1 SARS-CoV-2 1 United States 1 Vaccination 1 adverse drug reaction 1 adverse event 1 aged 1 coronavirus disease 1 human 1 mRNA vaccine 1 multisystem inflammatory syndrome in adults 1 prevention and control 1 respiratory infections 1 severe acute respiratory syndrome coronavirus 2 1 vaccination 1 viruses 1 zoonoses 1