Estimation of anti-orthopoxvirus immunity in Moscow residents and potential risks of spreading Monkeypox virus. - Gushchin VA; Ogarkova DA; Dolzhikova IV; Zubkova OV; Grigoriev IV; Pochtovyi AA; Iliukhina AA; Ozharovskaia TA; Kuznetsova NA; Kustova DD; Shelkov AY; Zrelkin DI; et al. (Frontiers in immunology, 2022)