TY - GEN AU - Monge Corella, Susana AU - Pastor-Barriuso, Roberto AU - HernĂ¡n, Miguel A PY - 2023 DO - 10.1101/2022.11.30.22282923 UR - http://hdl.handle.net/20.500.12105/17453 AB - Recent observational studies have found a higher risk of reinfection with Omicron in people who received a third booster dose. This finding has been interpreted as evidence of immune imprinting of COVID-19 vaccines. We propose an alternative... LA - eng PB - medRxiv KW - Selection bias KW - Collider KW - Causal inference KW - SARS-CoV-2 KW - Imprinting KW - Vaccines TI - The imprinting effect of COVID-19 vaccines: an expected selection bias in observational studies TY - research article ER -