Author Correction: Effectiveness of mRNA COVID-19 vaccine booster doses against Omicron severe outcomes - Ramandip Grewal; Lena Nguyen; Sarah A. Buchan; Sarah E. Wilson; Sharifa Nasreen; Peter C. Austin; Kevin A. Brown; Deshayne B. Fell; Jonathan B. Gubbay; Kevin L. Schwartz; Mina Tadrous; Kumanan Wilson; et al. (Nature Communications)