{"id":"https://openalex.org/W4289824658","doi":"https://doi.org/10.2139/ssrn.4180482","title":"Comparative COVID-19 Vaccines Effectiveness in Preventing Infections, Hospitalizations, and Deaths with SARS-CoV-2 BA.5 and Ba.2 Omicron Lineages: A Case-Case and Cohort Study Using Electronic Health Records in Portugal","display_name":"Comparative COVID-19 Vaccines Effectiveness in Preventing Infections, Hospitalizations, and Deaths with SARS-CoV-2 BA.5 and Ba.2 Omicron Lineages: A Case-Case and Cohort Study Using Electronic Health Records in Portugal","publication_year":2022,"publication_date":"2022-01-01","ids":{"openalex":"https://openalex.org/W4289824658","doi":"https://doi.org/10.2139/ssrn.4180482"},"language":"en","primary_location":{"id":"doi:10.2139/ssrn.4180482","doi":"https://doi.org/10.2139/ssrn.4180482","is_oa":true,"landing_page_url":"https://doi.org/10.2139/ssrn.4180482","pdf_url":null,"source":{"id":"https://openalex.org/S4210172589","display_name":"SSRN Electronic Journal","issn_l":"1556-5068","issn":["1556-5068"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1318003438","host_organization_name":"RELX Group (Netherlands)","host_organization_lineage":["https://openalex.org/I1318003438"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.2139/ssrn.4180482","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5012343756","display_name":"Irina Kislaya","orcid":"https://orcid.org/0000-0001-5772-2416","observed_orcids":["https://orcid.org/0000-0001-5772-2416"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Irina Kislaya","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Epidemiology Department, Lisbon, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Epidemiology Department"],"raw_orcid":"https://orcid.org/0000-0001-5772-2416","affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Epidemiology Department, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Epidemiology Department","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016552043","display_name":"Pedro Casaca","orcid":"https://orcid.org/0000-0002-9772-806X","observed_orcids":["https://orcid.org/0000-0002-9772-806X"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Pedro Casaca","raw_affiliation_strings":["Directorate of Information and Analysis Services, Lisboa, Portugal","Directorate of Information and Analysis Services"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Directorate of Information and Analysis Services, Lisboa, Portugal","institution_ids":[]},{"raw_affiliation_string":"Directorate of Information and Analysis Services","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037909632","display_name":"V\u00edtor Borges","orcid":"https://orcid.org/0000-0003-3767-2209","observed_orcids":["https://orcid.org/0000-0003-3767-2209"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"V\u00edtor Borges","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014186125","display_name":"Carlos Sousa","orcid":"https://orcid.org/0000-0003-0708-6874","observed_orcids":["https://orcid.org/0000-0003-0708-6874"]},"institutions":[{"id":"https://openalex.org/I4405259590","display_name":"Unilabs (Switzerland)","ror":"https://ror.org/02ep7nq58","country_code":"CH","type":"company","lineage":["https://openalex.org/I4405259590"]},{"id":"https://openalex.org/I4405259967","display_name":"Unilabs (Portugal)","ror":"https://ror.org/0300gbr82","country_code":"PT","type":"company","lineage":["https://openalex.org/I4405259967"]}],"countries":["CH","PT"],"is_corresponding":false,"raw_author_name":"Carlos Sousa","raw_affiliation_strings":["Unilabs, Porto, Portugal","Unilabs"],"raw_orcid":"https://orcid.org/0000-0003-0708-6874","affiliations":[{"raw_affiliation_string":"Unilabs, Porto, Portugal","institution_ids":["https://openalex.org/I4405259967"]},{"raw_affiliation_string":"Unilabs","institution_ids":["https://openalex.org/I4405259590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081903229","display_name":"Bibiana I. Ferreira","orcid":"https://orcid.org/0000-0003-4772-9395","observed_orcids":["https://orcid.org/0000-0003-4772-9395"]},"institutions":[{"id":"https://openalex.org/I4210121181","display_name":"Algarve Biomedical Center","ror":"https://ror.org/02rgrnk13","country_code":"PT","type":"facility","lineage":["https://openalex.org/I4210121181"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Bibiana  I. Ferreira","raw_affiliation_strings":["Algarve Biomedical Center Research Institute (ABC-RI), Faro, Portugal","Algarve Biomedical Center Research Institute (ABC-RI)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Algarve Biomedical Center Research Institute (ABC-RI), Faro, Portugal","institution_ids":["https://openalex.org/I4210121181"]},{"raw_affiliation_string":"Algarve Biomedical Center Research Institute (ABC-RI)","institution_ids":["https://openalex.org/I4210121181"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110969381","display_name":"Ana Fonte","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ana Fonte","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040177244","display_name":"Eug\u00e9nia Fernandes","orcid":"https://orcid.org/0000-0002-4547-6358","observed_orcids":["https://orcid.org/0000-0002-4547-6358"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Eugenia Fernandes","raw_affiliation_strings":["Directorate of Information and Analysis Services, Lisboa, Portugal","Directorate of Information and Analysis Services"],"raw_orcid":"https://orcid.org/0000-0002-4547-6358","affiliations":[{"raw_affiliation_string":"Directorate of Information and Analysis Services, Lisboa, Portugal","institution_ids":[]},{"raw_affiliation_string":"Directorate of Information and Analysis Services","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007738640","display_name":"Carlos Matias Dias","orcid":"https://orcid.org/0000-0002-0206-5874","observed_orcids":["https://orcid.org/0000-0002-0206-5874"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Carlos Matias Dias","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085155561","display_name":"S\u00edlvia Duarte","orcid":"https://orcid.org/0000-0003-2943-5975","observed_orcids":["https://orcid.org/0000-0003-2943-5975"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Silvia Duarte","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit, Lisbon, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007190292","display_name":"Jos\u00e9 Pedro Almeida","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405259590","display_name":"Unilabs (Switzerland)","ror":"https://ror.org/02ep7nq58","country_code":"CH","type":"company","lineage":["https://openalex.org/I4405259590"]},{"id":"https://openalex.org/I4405259967","display_name":"Unilabs (Portugal)","ror":"https://ror.org/0300gbr82","country_code":"PT","type":"company","lineage":["https://openalex.org/I4405259967"]}],"countries":["CH","PT"],"is_corresponding":false,"raw_author_name":"Jos\u00e9  Pedro Almeida","raw_affiliation_strings":["Unilabs, Porto, Portugal","Unilabs"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Unilabs, Porto, Portugal","institution_ids":["https://openalex.org/I4405259967"]},{"raw_affiliation_string":"Unilabs","institution_ids":["https://openalex.org/I4405259590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040677735","display_name":"In\u00eas Grenho","orcid":"https://orcid.org/0000-0003-3777-9380","observed_orcids":["https://orcid.org/0000-0003-3777-9380"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"In\u00eas Grenho","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101577151","display_name":"Lu\u00eds Coelho","orcid":"https://orcid.org/0009-0007-0488-7912","observed_orcids":["https://orcid.org/0009-0007-0488-7912"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lu\u00eds Coelho","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083995572","display_name":"Rita Ferreira","orcid":"https://orcid.org/0000-0002-0016-7543","observed_orcids":["https://orcid.org/0000-0002-0016-7543"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Rita Ferreira","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060666012","display_name":"Patr\u00edcia Pita Ferreira","orcid":"https://orcid.org/0000-0002-4460-4549","observed_orcids":["https://orcid.org/0000-0002-4460-4549"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Patr\u00edcia Pita Ferreira","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-4460-4549","affiliations":[]},{"author_position":"middle","author":{"id":null,"display_name":"Cl\u00e1udia  Medeiros Borges","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210156281","display_name":"Administracao Central do Sistema de Saude","ror":"https://ror.org/05hdjr057","country_code":"PT","type":"government","lineage":["https://openalex.org/I4210156281"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Cl\u00e1udia  Medeiros Borges","raw_affiliation_strings":["Administra\u00e7\u00e3o Central do Sistema de Sa\u00fade, I.P., Portugal","Administra\u00e7\u00e3o Central do Sistema de Sa\u00fade, I.P"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Administra\u00e7\u00e3o Central do Sistema de Sa\u00fade, I.P., Portugal","institution_ids":["https://openalex.org/I4210156281"]},{"raw_affiliation_string":"Administra\u00e7\u00e3o Central do Sistema de Sa\u00fade, I.P","institution_ids":["https://openalex.org/I4210156281"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008152164","display_name":"Joana Isidro","orcid":"https://orcid.org/0000-0002-8529-9878","observed_orcids":["https://orcid.org/0000-0002-8529-9878"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Joana Isidro","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063119140","display_name":"Miguel Pinto","orcid":"https://orcid.org/0000-0001-6370-3051","observed_orcids":["https://orcid.org/0000-0001-6370-3051"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Miguel Pinto","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Bioinformatics Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031249554","display_name":"Lu\u00eds Menezes","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405259590","display_name":"Unilabs (Switzerland)","ror":"https://ror.org/02ep7nq58","country_code":"CH","type":"company","lineage":["https://openalex.org/I4405259590"]},{"id":"https://openalex.org/I4405259967","display_name":"Unilabs (Portugal)","ror":"https://ror.org/0300gbr82","country_code":"PT","type":"company","lineage":["https://openalex.org/I4405259967"]}],"countries":["CH","PT"],"is_corresponding":false,"raw_author_name":"Lu\u00eds Menezes","raw_affiliation_strings":["Unilabs, Porto, Portugal","Unilabs"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Unilabs, Porto, Portugal","institution_ids":["https://openalex.org/I4405259967"]},{"raw_affiliation_string":"Unilabs","institution_ids":["https://openalex.org/I4405259590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073270719","display_name":"Daniel Sobral","orcid":"https://orcid.org/0000-0003-3955-0117","observed_orcids":["https://orcid.org/0000-0003-3955-0117"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Daniel Sobral","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062340389","display_name":"Alexandra Nunes","orcid":"https://orcid.org/0000-0001-6449-8053","observed_orcids":["https://orcid.org/0000-0001-6449-8053"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Alexandra Nunes","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088365294","display_name":"Daniela Lopes dos Santos","orcid":"https://orcid.org/0000-0002-1782-1337","observed_orcids":["https://orcid.org/0000-0002-1782-1337"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Daniela Santos","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":null,"display_name":"Ant\u00f3nio Maia Gon\u00e7alves","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ant\u00f3nio Maia Gon\u00e7alves","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019811435","display_name":"Lu\u0131\u0301s Vieira","orcid":"https://orcid.org/0000-0002-7703-1409","observed_orcids":["https://orcid.org/0000-0002-7703-1409"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Lu\u00eds Vieira","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit, Lisbon, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052042621","display_name":"Jo\u00e3o Paulo Gomes","orcid":"https://orcid.org/0000-0002-2697-2399","observed_orcids":["https://orcid.org/0000-0002-2697-2399"]},"institutions":[{"id":"https://openalex.org/I4210142220","display_name":"National Institute of Health Dr. Ricardo Jorge","ror":"https://ror.org/03mx8d427","country_code":"PT","type":"other","lineage":["https://openalex.org/I4210117458","https://openalex.org/I4210142220","https://openalex.org/I4210157859"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Jo\u00e3o  Paulo Gomes","raw_affiliation_strings":["National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit, Lisbon, Portugal","National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit"],"raw_orcid":"https://orcid.org/0000-0002-2697-2399","affiliations":[{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210142220"]},{"raw_affiliation_string":"National Health Institute Doutor Ricardo Jorge (INSA) - Innovation and Technology Unit","institution_ids":["https://openalex.org/I4210142220"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067503146","display_name":"Pedro Pinto Leite","orcid":"https://orcid.org/0000-0002-5939-2577","observed_orcids":["https://orcid.org/0000-0002-5939-2577"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Pedro  Pinto Leite","raw_affiliation_strings":["Directorate of Information and Analysis Services, Lisboa, Portugal","Directorate of Information and Analysis Services"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Directorate of Information and Analysis Services, Lisboa, Portugal","institution_ids":[]},{"raw_affiliation_string":"Directorate of Information and Analysis Services","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103098592","display_name":"Baltazar Nunes","orcid":"https://orcid.org/0000-0001-6230-7209","observed_orcids":["https://orcid.org/0000-0001-6230-7209"]},"institutions":[{"id":"https://openalex.org/I83558840","display_name":"Universidade Nova de Lisboa","ror":"https://ror.org/02xankh89","country_code":"PT","type":"education","lineage":["https://openalex.org/I83558840"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Baltazar Nunes","raw_affiliation_strings":["New University of Lisbon - NOVA National School of Public Health, Lisbon, Portugal","New University of Lisbon - NOVA National School of Public Health"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"New University of Lisbon - NOVA National School of Public Health, Lisbon, Portugal","institution_ids":["https://openalex.org/I83558840"]},{"raw_affiliation_string":"New University of Lisbon - NOVA National School of Public Health","institution_ids":["https://openalex.org/I83558840"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066419851","display_name":"Ausenda Machado","orcid":"https://orcid.org/0000-0002-1849-1499","observed_orcids":["https://orcid.org/0000-0002-1849-1499"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ausenda Machado","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-1849-1499","affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5077396885","display_name":"Andr\u00e9 Peralta\u2010Santos","orcid":"https://orcid.org/0000-0002-1390-2076","observed_orcids":["https://orcid.org/0000-0002-1390-2076"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Andr\u00e9 Peralta-Santos","raw_affiliation_strings":["Directorate of Information and Analysis Services, Lisboa, Portugal","Directorate of Information and Analysis Services"],"raw_orcid":"https://orcid.org/0000-0002-1390-2076","affiliations":[{"raw_affiliation_string":"Directorate of Information and Analysis Services, Lisboa, Portugal","institution_ids":[]},{"raw_affiliation_string":"Directorate of Information and Analysis Services","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5012343756"],"corresponding_institution_ids":["https://openalex.org/I4210142220"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10118","display_name":"SARS-CoV-2 and COVID-19 Research","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10118","display_name":"SARS-CoV-2 and COVID-19 Research","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10410","display_name":"COVID-19 epidemiological studies","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2611","display_name":"Modeling and Simulation"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10041","display_name":"COVID-19 Clinical Research Studies","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/covid-19","display_name":"COVID-19 pandemic","score":0.800000011920929},{"id":"https://openalex.org/keywords/omicron-ba-2","display_name":"Omicron BA.2","score":0.984000027179718},{"id":"https://openalex.org/keywords/vaccine-effectiveness","display_name":"vaccine effectiveness","score":0.7770000100135803},{"id":"https://openalex.org/keywords/booster-vaccination","display_name":"booster vaccination","score":0.968999981880188},{"id":"https://openalex.org/keywords/prior-sars-cov-2-infection","display_name":"prior SARS-CoV-2 infection","score":0.8149999976158142},{"id":"https://openalex.org/keywords/covid-19-hospitalization","display_name":"COVID-19 hospitalization","score":0.9279999732971191},{"id":"https://openalex.org/keywords/covid-19-mortality","display_name":"COVID-19 mortality","score":0.9990000128746033},{"id":"https://openalex.org/keywords/portugal","display_name":"Portugal","score":0.6690000295639038},{"id":"https://openalex.org/keywords/whole-genome-sequencing","display_name":"whole genome sequencing","score":0.6990000009536743}],"concepts":[{"id":"https://openalex.org/C3008058167","wikidata":"https://www.wikidata.org/wiki/Q84263196","display_name":"Coronavirus disease 2019 (COVID-19)","level":4,"score":0.751745343208313},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6286997199058533},{"id":"https://openalex.org/C3007834351","wikidata":"https://www.wikidata.org/wiki/Q82069695","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","level":5,"score":0.6187529563903809},{"id":"https://openalex.org/C159047783","wikidata":"https://www.wikidata.org/wiki/Q7215","display_name":"Virology","level":1,"score":0.5305044651031494},{"id":"https://openalex.org/C3006700255","wikidata":"https://www.wikidata.org/wiki/Q81068910","display_name":"2019-20 coronavirus outbreak","level":3,"score":0.5167362093925476},{"id":"https://openalex.org/C3019952477","wikidata":"https://www.wikidata.org/wiki/Q1324077","display_name":"Health records","level":3,"score":0.5019066333770752},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.4723599851131439},{"id":"https://openalex.org/C3020144179","wikidata":"https://www.wikidata.org/wiki/Q10871684","display_name":"Electronic health record","level":3,"score":0.46667802333831787},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.42028728127479553},{"id":"https://openalex.org/C160735492","wikidata":"https://www.wikidata.org/wiki/Q31207","display_name":"Health care","level":2,"score":0.19737648963928223},{"id":"https://openalex.org/C116675565","wikidata":"https://www.wikidata.org/wiki/Q3241045","display_name":"Outbreak","level":2,"score":0.18123406171798706},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.15790963172912598},{"id":"https://openalex.org/C524204448","wikidata":"https://www.wikidata.org/wiki/Q788926","display_name":"Infectious disease (medical specialty)","level":3,"score":0.11818087100982666},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.10165661573410034},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.07233107089996338},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2139/ssrn.4180482","doi":"https://doi.org/10.2139/ssrn.4180482","is_oa":true,"landing_page_url":"https://doi.org/10.2139/ssrn.4180482","pdf_url":null,"source":{"id":"https://openalex.org/S4210172589","display_name":"SSRN Electronic Journal","issn_l":"1556-5068","issn":["1556-5068"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1318003438","host_organization_name":"RELX Group (Netherlands)","host_organization_lineage":["https://openalex.org/I1318003438"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.2139/ssrn.4180482","doi":"https://doi.org/10.2139/ssrn.4180482","is_oa":true,"landing_page_url":"https://doi.org/10.2139/ssrn.4180482","pdf_url":null,"source":{"id":"https://openalex.org/S4210172589","display_name":"SSRN Electronic Journal","issn_l":"1556-5068","issn":["1556-5068"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1318003438","host_organization_name":"RELX Group (Netherlands)","host_organization_lineage":["https://openalex.org/I1318003438"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":1.0}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W2078129874","https://openalex.org/W2159410343","https://openalex.org/W2414973126","https://openalex.org/W2979698767","https://openalex.org/W3023078588","https://openalex.org/W3128838636","https://openalex.org/W3201105003","https://openalex.org/W4200520803","https://openalex.org/W4205919080","https://openalex.org/W4210665241","https://openalex.org/W4214656724","https://openalex.org/W4214736244","https://openalex.org/W4220708346","https://openalex.org/W4226108422","https://openalex.org/W4282958946","https://openalex.org/W4282972656","https://openalex.org/W4283319609","https://openalex.org/W4283704819","https://openalex.org/W4295777530","https://openalex.org/W4302023458","https://openalex.org/W4306722717","https://openalex.org/W4307985186","https://openalex.org/W6776877475"],"related_works":["https://openalex.org/W4287877609","https://openalex.org/W4319215925","https://openalex.org/W4311071027","https://openalex.org/W4324374125","https://openalex.org/W4323808759","https://openalex.org/W4307253232","https://openalex.org/W4210794844","https://openalex.org/W4294074115","https://openalex.org/W4224272657","https://openalex.org/W4324303557"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":1}],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2022-08-05T00:00:00"}