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Pérez-Gómez B, Pastor-Barriuso R, Fernández-de-Larrea N, Hernán MA, Pérez-Olmeda M, Oteo-Iglesias J, Fernández-Navarro P, Fernández-García A, Martín M, Cruz I, Sanmartín JL, León-Paniagua J, Muñoz-Montalvo JF, Blanco F, Yotti R, Pollán M. SARS-CoV-2 Infection During the First and Second Pandemic Waves in Spain: the ENE-COVID Study. Am J Public Health 2023; 113:533-544. [PMID: 36893370 PMCID: PMC10088950 DOI: 10.2105/ajph.2023.307233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2023] [Indexed: 03/11/2023]
Abstract
Objectives. To describe participant characteristics associated with severe acute respiratory syndrome coronavirus 2 infection in Spain's first 2 COVID-19 waves per the Spanish National Seroepidemiological Survey of SARS-CoV-2 Infection (ENE-COVID). Methods. A representative cohort of the noninstitutionalized Spanish population, selected through stratified 2-stage sampling, answered a questionnaire and received point-of-care testing April to June 2020 (first wave: n = 68 287); previously seronegative participants repeated the questionnaire and test November 2020 (second wave: n = 44 451). We estimated seropositivity by wave and participant characteristics, accounting for sampling weights, nonresponse, and design effects. Results. We found that 6.0% (95% confidence interval [CI] = 5.7%, 6.4%) of Spain's population was infected by June and 3.8% (95% CI = 3.5%, 4.1%) more by November 2020. Both genders were equally affected. Seroprevalence decreased with age in adults 20 years and older in the second wave; socioeconomic differences increased. Health care workers were affected at 11.1% (95% CI = 9.0%, 13.6%) and 6.1% (95% CI = 4.4%, 8.5%) in the first and second waves, respectively. Living with an infected person increased infection risk to 22.1% (95% CI = 18.9%, 25.6%) in the first and 35.0% (95% CI = 30.8%, 39.4%) in the second wave. Conclusions. ENE-COVID characterized the first 2 pandemic waves, when information from surveillance systems was incomplete. (Am J Public Health. 2023;113(5):533-544. https://doi.org/10.2105/AJPH.2023.307233).
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Affiliation(s)
- Beatriz Pérez-Gómez
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Roberto Pastor-Barriuso
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Nerea Fernández-de-Larrea
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Miguel A Hernán
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Mayte Pérez-Olmeda
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Jesús Oteo-Iglesias
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Pablo Fernández-Navarro
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Aurora Fernández-García
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Mariano Martín
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Israel Cruz
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - José L Sanmartín
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - José León-Paniagua
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Juan F Muñoz-Montalvo
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Faustino Blanco
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Raquel Yotti
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
| | - Marina Pollán
- Beatriz Pérez-Gómez, Roberto Pastor-Barriuso, Nerea Fernández-de-Larrea, Pablo Fernández-Navarro, and Marina Pollán are with the National Centre for Epidemiology and the Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid, Spain. Miguel A. Hernán is with the Departments of Epidemiology and Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA. Mayte Pérez-Olmeda, Jesús Oteo-Iglesias, and Aurora Fernández-García are with the National Centre for Microbiology and the Consortium for Biomedical Research in Infectious Diseases (CIBERINFEC), ISCIII. Mariano Martín, José L. Sanmartín, Juan F. Muñoz-Montalvo, and Faustino Blanco are with the Deputy Directorate of Information Technologies, Ministry of Health, Madrid, Spain. Israel Cruz is with the National School of Public Health, ISCIII. José León-Paniagua and Raquel Yotti are with ISCIII
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