Fig. 3

Effect of gender on humoral immune response induced by CoronaVac. A–E The levels of IgM, IgG, and surrogate neutralizing antibodies responses between males and females at the primary immunization phase (from T1 to T4) and the booster immunization phase (from T5 to T7). Statistical significance was determined by Mann–Whitney U-test. ns indicates no statically significance. *P < 0.05; ***P < 0.001