Transmission characteristics and inactivated vaccine effectiveness against transmission of the SARS-CoV-2 Omicron BA.2 variant in Shenzhen, China

• Published in: Frontiers in immunology Vol. 14; p. 1290279
• Main Authors: He, Xiaofeng, Liao, Yuxue, Liang, Yuanhao, Yu, Jiexin, Gao, Wei, Wan, Jia, Liao, Yi, Su, Jiao, Zou, Xuan, Tang, Shixing
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Media S.A 08.01.2024
• Subjects: Adult; Aged; Aged, 80 and over; BA.2 subvariant; China - epidemiology; COVID-19; COVID-19 - epidemiology; COVID-19 - prevention & control; COVID-19 Vaccines; effectiveness; Female; Humans; Immunology; Omicron (B.1.1.529); Retrospective Studies; SARS-CoV-2; transmission; Vaccine Efficacy; vaccines; China; COVID-19; effectiveness; BA.2 subvariant; Omicron (B.1.1.529); transmission; vaccines

We conducted a retrospective cohort study to evaluate the transmission risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron BA.2 variant and the effectiveness of inactivated COVID-19 vaccine boosters in Shenzhen during a BA.2 outbreak period from 1 February to 21 April 2022....