Author Correction: Real-world COVID-19 vaccine effectiveness against the Omicron BA.2 variant in a SARS-CoV-2 infection-naive population

Correction to: Nature Medicine 10.1038/s41591-023-02219-5. Published online 18 January 2023.

In the version of the article initially published, there was a typographical error in the force of infection (FOI) formula under the second paragraph of the “Statistical Methods” section, originally reading $\lambda \left(t\right)=\gamma \times f\left(a\right)\times VL\left(t\right)\times {VE}_{v,n\left(t\right)}\left(t-T_{n\left(t\right)}\right)$. The formula has been corrected to read $\lambda \left(t\right)=\gamma \times f\left(a\right)\times VL\left(t\right)\times \left(1-{VE}_{v,n\left(t\right)}\left(t-T_{n\left(t\right)}\right)\right)$ in the HTML and PDF versions of the article. The results of the article were not affected by this error.