Untitled-2 1 Proceedings S.Z.M.C. Vol: 35(4): pp. 1-5, 2021. PSZMC-815-35-4-2021 1Department of Virology, 2Department of Histopathology, 3Department of Clinical Chemistry and Immunology, 4Department of Pathology, Chughtai Institute of Pathology, Lahore 2 Comparison of Covid-19 IgG Anti-Spike Antibody Titer after Vaccination with Sputnik V… 3 Comparison of Covid-19 IgG Anti-Spike Antibody Titer after Vaccination with Sputnik V… 4 Comparison of Covid-19 IgG Anti-Spike Antibody Titer after Vaccination with Sputnik V… 5 Comparison of Covid-19 IgG Anti-Spike Antibody Titer after Vaccination with Sputnik V…