Fig. 3

IgG antibody responses to vaccination with inactivated COVID-19 vaccine in PLWH and HNCs. Titers (A) and seroconversion rates (B) of IgG at days 0, 14, 28, 42 and 70 after vaccination. The threshold for a positive response is shown by the hashed line at 0.18EU/mL. Data points are medians (error bars represent 95% CI). P value calculated using Mann–Whitney U test (A) or Fisher’s exact test (B)