tetano
Editor, Senior Moderator
Emerg Infect Dis
. 2021 Aug 26;27(11).
doi: 10.3201/eid2711.210636. Online ahead of print.
Prevalence of SARS-CoV-2 Antibodies after First 6 Months of COVID-19 Pandemic, Portugal
Luísa Canto E Castro, Ana Helena Guia Pereira, Rita Ribeiro, Catarina Alves, Luís Veloso, Vera Vicente, Dalila Alves, Inês Domingues, Cláudia Silva, Andreia Gomes, Marta Serrano, Ângela Afonso, Marc Veldhoen, Maria José Rego de Sousa, José Germano Rego de Sousa, Germano de Sousa, Maria M Mota, Bruno Silva-Santos, Ruy M Ribeiro
Abstract
In September 2020, we tested 13,398 persons in Portugal for antibodies against severe acute respiratory syndrome coronavirus 2 by using a quota sample stratified by age and population density. We found a seroprevalence of 2.2%, 3-4 times larger than the official number of cases at the end of the first wave of the pandemic.
Keywords: COVID-19; Portugal; SARS-CoV-2; antibodies; coronavirus disease; coronaviruses; pandemic; population prevalence; respiratory infections; seroepidemiology; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.
. 2021 Aug 26;27(11).
doi: 10.3201/eid2711.210636. Online ahead of print.
Prevalence of SARS-CoV-2 Antibodies after First 6 Months of COVID-19 Pandemic, Portugal
Luísa Canto E Castro, Ana Helena Guia Pereira, Rita Ribeiro, Catarina Alves, Luís Veloso, Vera Vicente, Dalila Alves, Inês Domingues, Cláudia Silva, Andreia Gomes, Marta Serrano, Ângela Afonso, Marc Veldhoen, Maria José Rego de Sousa, José Germano Rego de Sousa, Germano de Sousa, Maria M Mota, Bruno Silva-Santos, Ruy M Ribeiro
- PMID: 34437830
- DOI: 10.3201/eid2711.210636
Abstract
In September 2020, we tested 13,398 persons in Portugal for antibodies against severe acute respiratory syndrome coronavirus 2 by using a quota sample stratified by age and population density. We found a seroprevalence of 2.2%, 3-4 times larger than the official number of cases at the end of the first wave of the pandemic.
Keywords: COVID-19; Portugal; SARS-CoV-2; antibodies; coronavirus disease; coronaviruses; pandemic; population prevalence; respiratory infections; seroepidemiology; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.