Covid19
Conditions
Brief summary
As a serosurveillance measure asymptomatic employees of an industrial workforce Jamshedpur (India) were tested for COVID-19 IgG antibodies. Of the tested employees who were positive for COVID-19 IgG antibodies the study aimed to find the percentage of cases who retained their COVID-19 IgG antibodies 45-65 days after initially testing positive.
Detailed description
As a serosurveillance measure, 3296 asymptomatic employees of an industrial workforce Jamshedpur (India) were tested for COVID-19 IgG antibodies specific for the spike subunit antigen by the ErbaLisa COVID-19, Erba Corporate Services (United Kingdom) between 28th June and 15th July 2020. The cases who tested positive for COVID-19 IgG antibodies were repeat tested for the presence of COVID-19 IgG at 45-65 days after initially testing positive. This was done with the aim of finding out the percentage of cases retaining their IgG antibodies at 45-65 days of initially testing positive.
Interventions
DIAGNOSTIC_TESTRepeat SARS-CoV-2 IgG antibodies at 45-65 days
All cases who initially tested positive for SARS-CoV-2 IgG antibodies would undergo a repeat test at 45-65 days
Sponsors
Tata Main Hospital
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
SARS-CoV-2 IgG antibody positive between 28th June and 15th July 2020
Exclusion criteria
SARS-CoV-2 IgG antibody negative between 28th June and 15th July 2020
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of cases retaining SARS-CoV-2 IgG antibodies at 45-65 days | 45-65 days | Percentage of cases retaining SARS-CoV-2 IgG antibodies at 45-65 days |
Countries
India
Outcome results
None listed