Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia

COVID-19 case counts in Indonesia inevitably underestimate the true cumulative incidence of infection due to limited diagnostic test availability, barriers to testing accessibility and asymptomatic infections. Therefore, community-based serological data is essential for understanding the true preval...

Full description

Bibliographic Details
Main Authors: Riris Andono Ahmad, Citra Indriani, Risalia Reni Arisanti, Ratih Oktri Nanda, Yodi Mahendradhata, Tri Wibawa
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLOS Global Public Health
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10292707/?tool=EBI
_version_ 1827829685589901312
author Riris Andono Ahmad
Citra Indriani
Risalia Reni Arisanti
Ratih Oktri Nanda
Yodi Mahendradhata
Tri Wibawa
author_facet Riris Andono Ahmad
Citra Indriani
Risalia Reni Arisanti
Ratih Oktri Nanda
Yodi Mahendradhata
Tri Wibawa
author_sort Riris Andono Ahmad
collection DOAJ
description COVID-19 case counts in Indonesia inevitably underestimate the true cumulative incidence of infection due to limited diagnostic test availability, barriers to testing accessibility and asymptomatic infections. Therefore, community-based serological data is essential for understanding the true prevalence of infections. This study aims to estimate the seroprevalence of SARS-CoV-2 infection and factors related to the seropositivity in Bantul Regency, Yogyakarta, Indonesia. A cross-sectional study involving 425 individuals in 40 clusters was conducted between March and April 2021. Participants were interviewed using an e-questionnaire developed in the Kobo toolbox to collect information on socio-demographic, COVID-19 suggestive symptoms, history of COVID-19 diagnosis and COVID-19 vaccination status. A venous blood sample was collected from each participant and tested for immunoglobulin G (Ig-G) SARS-CoV-2 antibody titers using the enzyme-linked immunosorbent assay (ELISA). Seroprevalence was 31.1% in the Bantul Regency: 34.2% in semi-urban and 29.9% in urban villages. Participants in the 55–64 age group demonstrated the highest seroprevalence (43.7%; p = 0.00), with a higher risk compared to the other age group (aOR = 3.79; 95% CI, 1.46–9.85, p<0.05). Seroprevalence in the unvaccinated participants was 29.9%. Family clusters accounted for 10.6% of the total seropositive cases. No significant difference was observed between seropositivity status, preventive actions, and mobility. Higher seroprevalence in semi-urban rather than urban areas indicates a gap in health services access. Surveillance improvement through testing, tracing, and treatment, particularly in areas with lower access to health services, and more robust implementation of health protocols are necessary.
first_indexed 2024-03-12T04:09:05Z
format Article
id doaj.art-9aa008e3f21e4939bac92fbd28257338
institution Directory Open Access Journal
issn 2767-3375
language English
last_indexed 2024-03-12T04:09:05Z
publishDate 2023-01-01
publisher Public Library of Science (PLoS)
record_format Article
series PLOS Global Public Health
spelling doaj.art-9aa008e3f21e4939bac92fbd282573382023-09-03T11:08:05ZengPublic Library of Science (PLoS)PLOS Global Public Health2767-33752023-01-0136Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, IndonesiaRiris Andono AhmadCitra IndrianiRisalia Reni ArisantiRatih Oktri NandaYodi MahendradhataTri WibawaCOVID-19 case counts in Indonesia inevitably underestimate the true cumulative incidence of infection due to limited diagnostic test availability, barriers to testing accessibility and asymptomatic infections. Therefore, community-based serological data is essential for understanding the true prevalence of infections. This study aims to estimate the seroprevalence of SARS-CoV-2 infection and factors related to the seropositivity in Bantul Regency, Yogyakarta, Indonesia. A cross-sectional study involving 425 individuals in 40 clusters was conducted between March and April 2021. Participants were interviewed using an e-questionnaire developed in the Kobo toolbox to collect information on socio-demographic, COVID-19 suggestive symptoms, history of COVID-19 diagnosis and COVID-19 vaccination status. A venous blood sample was collected from each participant and tested for immunoglobulin G (Ig-G) SARS-CoV-2 antibody titers using the enzyme-linked immunosorbent assay (ELISA). Seroprevalence was 31.1% in the Bantul Regency: 34.2% in semi-urban and 29.9% in urban villages. Participants in the 55–64 age group demonstrated the highest seroprevalence (43.7%; p = 0.00), with a higher risk compared to the other age group (aOR = 3.79; 95% CI, 1.46–9.85, p<0.05). Seroprevalence in the unvaccinated participants was 29.9%. Family clusters accounted for 10.6% of the total seropositive cases. No significant difference was observed between seropositivity status, preventive actions, and mobility. Higher seroprevalence in semi-urban rather than urban areas indicates a gap in health services access. Surveillance improvement through testing, tracing, and treatment, particularly in areas with lower access to health services, and more robust implementation of health protocols are necessary.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10292707/?tool=EBI
spellingShingle Riris Andono Ahmad
Citra Indriani
Risalia Reni Arisanti
Ratih Oktri Nanda
Yodi Mahendradhata
Tri Wibawa
Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia
PLOS Global Public Health
title Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia
title_full Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia
title_fullStr Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia
title_full_unstemmed Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia
title_short Seroprevalence of SARS-CoV-2 and risk factors in Bantul Regency in March-April 2021, Yogyakarta, Indonesia
title_sort seroprevalence of sars cov 2 and risk factors in bantul regency in march april 2021 yogyakarta indonesia
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10292707/?tool=EBI
work_keys_str_mv AT ririsandonoahmad seroprevalenceofsarscov2andriskfactorsinbantulregencyinmarchapril2021yogyakartaindonesia
AT citraindriani seroprevalenceofsarscov2andriskfactorsinbantulregencyinmarchapril2021yogyakartaindonesia
AT risaliareniarisanti seroprevalenceofsarscov2andriskfactorsinbantulregencyinmarchapril2021yogyakartaindonesia
AT ratihoktrinanda seroprevalenceofsarscov2andriskfactorsinbantulregencyinmarchapril2021yogyakartaindonesia
AT yodimahendradhata seroprevalenceofsarscov2andriskfactorsinbantulregencyinmarchapril2021yogyakartaindonesia
AT triwibawa seroprevalenceofsarscov2andriskfactorsinbantulregencyinmarchapril2021yogyakartaindonesia