Fig. 3

Symptoms in HCWs with first infection and reinfection of SARS-CoV-2. (A) The proportion of the number of symptoms in first-infected and reinfected HCWs. (B) The proportion of symptoms in the first infection versus reinfection among HCWs. (C) The proportion of symptoms in the first infection versus reinfection among male HCWs. (D) The proportion of symptoms in the first infection versus reinfection among female HCWs. (E) The proportion of symptoms in the first infection versus reinfection among HCWs age < 30 years. (F) The proportion of symptoms in the first infection versus reinfection among HCWs age ≥ 30 years. (G) The proportion of symptoms in the inactivated vaccine group versus non-inactivated vaccine group among reinfecion HCWs (161 cases). (H) The proportion of symptoms in the ≤ 2 doses, 3 doses and 4 doses of vaccination groups among reinfecion HCWs (161 cases). *P < 0.05 or ** P < 0.01 among the groups