Guo, Zeng, Lu et al. assess SARS-CoV-2 Omicron BA.5 transmission and protection from inactivated vaccines among children and adolescents prior to the end of Zero-COVID measures in Urumqi, China. Two vaccine doses provide improved protection against Omicron infection and reduced transmission versus a single dose when given within the same year.
- Zihao Guo
- Ting Zeng
- Shi Zhao
