Estimate Vaccine Effectiveness Based on Different Study Designs R package vaccineff version 1.0.3 CRAN Task View: Epidemiology (https://CRAN.R-project.org/view=Epidemiology) Provides tools for estimating vaccine effectiveness and related metrics. The 'vaccineff_data' class manages key features for preparing, visualizing, and organizing cohort data, as well as estimating vaccine effectiveness. The results and model performance are assessed using the 'vaccineff' class. Software Depends: R (>= 4.2.0) Imports: checkmate, ggplot2 (>= 3.5.2), linelist, MatchIt, rlang, scales, stats, survival Suggests: knitr, rmarkdown, spelling, testthat (>= 3.0.0) Jaime Pavlich-Mariscal <jpavlich@javeriana.edu.co> Comprehensive R Archive Network (CRAN) David Santiago Quevedo [aut] (ORCID: <https://orcid.org/0000-0003-1583-4262>), Zulma M. Cucunubá [aut] (ORCID: <https://orcid.org/0000-0002-8165-3198>), International Development Research Center (IDRC) [fnd] (ROR: <https://ror.org/0445x0472>), Geraldine Gómez Millán [ctb] (ORCID: <https://orcid.org/0009-0007-8701-0568>), Pratik Gupte [ctb] (ORCID: <https://orcid.org/0000-0001-5294-7819>), Érika J Cantor [ctb] (ORCID: <https://orcid.org/0000-0003-3320-6032>), Santiago Loaiza [ctb] (ORCID: <https://orcid.org/0000-0002-2092-3262>), Jaime Pavlich-Mariscal [ctb, cre] (ORCID: <https://orcid.org/0000-0002-3892-6680>), Hugo Gruson [ctb] (ORCID: <https://orcid.org/0000-0002-4094-1476>), Chris Hartgerink [ctb] (ORCID: <https://orcid.org/0000-0003-1050-6809>), Felipe Segundo Abril [ctb] (ORCID: <https://orcid.org/0000-0002-2512-4929>), Joshua W. Lambert [ctb] (ORCID: <https://orcid.org/0000-0001-5218-3046>), Julian Otero [ctb] (ORCID: <https://orcid.org/0009-0006-0429-7747>), Pontificia Universidad Javeriana [cph] (ROR: <https://ror.org/03etyjw28>) MIT + file LICENSE (https://CRAN.R-project.org/package=vaccineff/LICENSE) 2026-07-29 application/tgz https://CRAN.R-project.org/package=vaccineff doi:10.32614/CRAN.package.vaccineff en-US