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10.1371/journal.pone.0249247

http://scihub22266oqcxt.onion/10.1371/journal.pone.0249247
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33788873!8011723!33788873
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suck abstract from ncbi


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pmid33788873      PLoS+One 2021 ; 16 (3): e0249247
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  • Seroprevalence of COVID-19 infection in a rural district of South India: A population-based seroepidemiological study #MMPMID33788873
  • Inbaraj LR; George CE; Chandrasingh S
  • PLoS One 2021[]; 16 (3): e0249247 PMID33788873show ga
  • OBJECTIVES: We aimed to estimate the seroprevalence of COVID-19 in a rural district of South India, six months after the index case. METHODOLOGY: We conducted a cross-sectional study of 509 adults aged more than 18 years. From all the four subdistricts, two grampanchayats (administrative cluster of 5-8 villages) were randomly selected followed by one village through convenience. The participants were invited for the study to the community-based study kiosk set up in all the eight villages through village health committees. We collected socio-demographic characteristics and symptoms using a mobile application-based questionnaire, and we tested samples for the presence of IgG antibodies for SARS CoV-2 using an electro chemiluminescent immunoassay. We calculated age-gender adjusted and test performance adjusted seroprevalence. RESULTS: The age-and gender-adjusted seroprevalence was 8.5% (95% CI 6.9%- 10.8%). The unadjusted seroprevalence among participants with hypertension and diabetes was 16.3% (95% CI:9.2-25.8) and 10.7% (95% CI: 5.5-18.3) respectively. When we adjusted for the test performance, the seroprevalence was 6.1% (95% CI 4.02-8.17). The study estimated 7 (95% CI 1:4.5-1:9) undetected infected individuals for every RT-PCR confirmed case. Infection Fatality Rate (IFR) was calculated as 12.38 per 10000 infections as on 22 October 2020. History of self-reported symptoms and education were significantly associated with positive status (p < 0.05). CONCLUSION: A significant proportion of the rural population in a district of south India remains susceptible to COVID-19. A higher proportion of susceptible, relatively higher IFR and a poor tertiary healthcare network stress the importance of sustaining the public health measures and promoting early access to the vaccine are crucial to preserving the health of this population. Low population density, good housing, adequate ventilation, limited urbanisation combined with public, private and local health leadership are critical components of curbing future respiratory pandemics.
  • |Adult[MESH]
  • |COVID-19/*epidemiology[MESH]
  • |Female[MESH]
  • |Humans[MESH]
  • |India/epidemiology[MESH]
  • |Male[MESH]
  • |Middle Aged[MESH]
  • |Rural Population/*statistics & numerical data[MESH]
  • |Seroepidemiologic Studies[MESH]


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