Co-Occurrence of SARS-CoV-2 Infection and Inactivated SARS-CoV-2 Vaccination among Healthcare Workers

Figure 1

Serial measurement of anti-S antibodies’ response among infected HCWs after acquiring the first-dose inactivated SARS-CoV-2 vaccination. Antibodies against RBD of the S protein (anti-S) concentration among eight HCWs who get SARS-CoV-2 infection after receiving the first dose of the inactivated SARS-CoV-2 vaccination are shown. The anti-S antibody concentration was measured on days 30, 60, and 90 after the RT-PCR positive result. The black dotted horizontal line represents the cutoff value (0.8) suggested by the manufacturer for positive interpretation of antibodies to SARS-CoV-2.