Estimating protection afforded by prior infection in preventing reinfection: applying the test-negative study design
Estimating protection afforded by prior infection in preventing reinfection: applying the test-negative study design
The COVID-19 pandemic has highlighted the need to use infection testing databases to rapidly estimate effectiveness of prior infection in preventing reinfection ($P{E}_S$) by novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants. Mathematical modeling was used to demonstrate a theoretical foundation for applicability of the test-negative, case-control study design …