TY - JOUR AU - Monge Corella, Susana AU - Rojas-Benedicto, Ayelén AU - Olmedo, Carmen AU - Martín-Merino, Elisa AU - Mazagatos, Clara AU - Limia, Aurora AU - Sierra, María José AU - Larrauri, Amparo AU - Hernán, Miguel A AU - IBERCovid AU - Gomez-Barroso, Diana PY - 2023 DO - 10.1093/cid/ciac429 UR - http://hdl.handle.net/20.500.12105/15830 AB - Background: Single-dose vaccination was widely recommended in the pre-Omicron era for persons with previous SARS-CoV-2 infection. The effectiveness of a second vaccine dose in this group in the Omicron era is unknown. Methods: We linked nationwide... LA - eng PB - Oxford University Press KW - COVID-19 KW - Omicron KW - SARS-CoV-2 KW - Effectiveness KW - Vaccines KW - SARS-CoV-2 KW - COVID-19 KW - Humans KW - BNT162 Vaccine KW - 2019-nCoV Vaccine mRNA-1273 KW - Reinfection TI - Effectiveness of a Second Dose of an mRNA Vaccine Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Omicron Infection in Individuals Previously Infected by Other Variants TY - journal article ER -