▎ 摘　　要

A novel colorimetric immunoassay for highly sensitive detection of respiratory syncytial virus (RSV), one of the leading causes of severe lower respiratory tract infections in all age groups, has been proposed based on Hg2+-stimulated peroxidase-like activity of gold nanoparticles-graphene oxide (AuNPs-GO) hybrids. This metal ion-enhanced immunoassay shows high promise in the field of biomedical sciences.