Abstract
During epidemics, data from different sources can provide information on varying aspects of the epidemic process. Serology-based epidemiologic surveys could be used to compose a consistent epidemic scenario. We assessed the seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) IgG in serum samples collected from 7,837 blood donors in 7 cities of Brazil during March-December 2020. Based on our results, we propose a modification in a compartmental model that uses reported number of SARS-CoV-2 cases and serology results from blood donors as inputs and delivers estimates of hidden variables, such as daily values of SARS-CoV-2 transmission rates and cumulative incidence rate of reported and unreported SARS-CoV-2 cases. We concluded that the information about cumulative incidence of a disease in a city's population can be obtained by testing serum samples collected from blood donors. Our proposed method also can be extended to surveillance of other infectious diseases.
Original language | English |
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Pages (from-to) | 734-742 |
Number of pages | 9 |
Journal | Emerging Infectious Diseases |
Volume | 28 |
Issue number | 4 |
Early online date | 18 Feb 2022 |
DOIs | |
Publication status | Published - Apr 2022 |
Bibliographical note
Chaves DG, Takahashi RHC, Campelo F, da Silva-Malta MCF, de Oliveira IR, Barbosa-Stancioli EF, et al. SARS-CoV-2 IgG seroprevalence among blood donors as a monitor of the COVID-19 epidemic, Brazil. Emerg Infect Dis. 2022 Apr [date cited]. https://doi.org/10.3201/eid2804.211961Keywords
- Antibodies, Viral
- Blood Donors
- Brazil/epidemiology
- COVID-19/epidemiology
- Epidemics
- Humans
- Immunoglobulin G
- SARS-CoV-2
- Seroepidemiologic Studies