# Seroprevalence of IgG Antibodies to SARS-CoV-2 (COVID-19) in Primary Health Care Workers and Their Household Contacts

> **NCT04808986** · NA · COMPLETED · sponsor: **Institut National de la Santé Et de la Recherche Médicale, France** · enrollment: 2817 (actual)

## Conditions studied

- Covid19

## Interventions

- **DIAGNOSTIC_TEST:** Serological test for the detection of IgG anti-SARS-CoV-2

## Key facts

- **NCT ID:** NCT04808986
- **Lead sponsor:** Institut National de la Santé Et de la Recherche Médicale, France
- **Sponsor class:** OTHER_GOV
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-05-10
- **Primary completion:** 2021-10-12
- **Final completion:** 2021-10-12
- **Target enrollment:** 2817 (ACTUAL)
- **Last updated:** 2025-09-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04808986

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04808986, "Seroprevalence of IgG Antibodies to SARS-CoV-2 (COVID-19) in Primary Health Care Workers and Their Household Contacts". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT04808986. Licensed CC0.

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