As the COVID-19 pandemic continues and the number of individuals with previous infection rises, numbers of SARS-CoV-2 reinfection are increasing. The second Omicron wave in Shanghai, China caused by BA.5-sublineages led to a large fraction of reinfections among BA.2 primary infections. To better understand the SARS-CoV-2 reinfection rate and clinical severity of reinfections, the investigators conducted a multi-centre cohort study. The investigators hope to provide valuable clinical evidences for reinfections and offer guidance for future policy making.
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Characteristics of all enrolled SARS-CoV-2 patients during two periods.
Timeframe: 2022-12~2023-2
Characteristics and multivariate analysis of risk factors for SARS-CoV-2 reinfection by gender, age, vaccination status, clinical severity and Ct values of primary infection.
Timeframe: 2022-12~2023-2
Clinical characteristics of SARS-CoV-2 primary infection and reinfection among patients with reinfection in Shanghai
Timeframe: 2022-12~2023-2