Effectiveness of a booster dose of COVID-19 vaccines during an outbreak of SARS-CoV-2 Omicron BA.2.2 in China: A case-control study

• Main Authors: Xiaqing Zhang (Author), Yao Wang (Author), Chengyang Hu (Author), Pengpeng Xu (Author), Liguo Ma (Author), Lei Liu (Author), Jie Sun (Author), Yang Liu (Author), Hui Yang (Author), Fan Pan (Author), Jieying Hu (Author), Chengsong Cao (Author), Kai Cheng (Author), Dawei Gao (Author), Yong Lyu (Author), Wei Qin (Author)
• Format: Book
• Published: Taylor & Francis Group, 2023-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Real-world evidence on the effectiveness of COVID-19 vaccines marketed in China against the Omicron BA.2.2 variant remains scarce. A case-control study was conducted to estimate the vaccine effectiveness (VE) of COVID-19 vaccines marketed in China (inactivated vaccines, an Ad5-nCoV vaccine, and a re...