Ferenci, Tamás ORCID: https://orcid.org/0000-0001-6791-3080 and Sarkadi, Balázs (2022) RBD-specifc antibody responses after two doses of BBIBP-CorV (Sinopharm, Beijing CNBG) vaccine. BMC Infectious Diseases, 22 . DOI 10.1186/s12879-022-07069-z