Epidemiological Multicohort Study of Latent COVID-19 Infections

Epidemiological Multicohort Study of Latent COVID-19 Infections in Residents and Staff of Nursing Homes in the City of Solingen

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04695678

Enrollment

1462

Registered

2021-01-05

Start date

2020-07-01

Completion date

2021-12-30

Last updated

2022-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Brief summary

Cross-sectional study to detect latent COVID-19 infections in residents and staff of old people's and nursing homes in the city of Solingen with a prospective follow-up of 6 months in a subgroup.

Detailed description

Particular interest is being paid to old people's and nursing homes during the COVID-19 pandemic, as people at particular risk are to be found there. Therefore, the health department of the city of Solingen will carry out extensive testing of both staff and residents for COVID-19 in this sensitive area. The scientific institute Bethanien für Pneumologie e.V. would like to collect and evaluate the data and test results collected in the process in order to record the occurrence of infections in this area and to obtain information on possible routes of infection and the effectiveness of hygiene measures taken. The aims of the study are: 1. Prevalence of latent COVID-19 infections at one point in time among residents and staff of old people's and nursing homes in Solingen. 2. Prevalence of latent COVID-19 infections over a period of 6 months among staff of a single nursing home (=subgroup) 3. Analysis of transmission pathways of the virus in a nursing home 4. Analysis of the effectiveness of hygiene measures taken 5. Analysis of risk factors (previous illnesses, medication, etc.)

Interventions

DIAGNOSTIC_TESTCOVID-19 nasal/pharyngeal swab

each study participant receives a nasal/pharyngeal swab

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* informed consent of the test person or the legally authorised guardian

Exclusion criteria

* missing consent

Design outcomes

Primary

Measure	Time frame	Description
Prevalence of latent COVID-19 infections at one point in time among residents and staff of all old people's and nursing homes in Solingen.	baseline	number of positive COVID-19 tests
Prevalence of latent COVID-19 infections over a follow-up period of 6 months among staff of one single nursing home	6 months	number of positive COVID-19 tests

Secondary

Measure	Time frame	Description
Analysis of risk factors (previous illnesses, medication...)	6 months	analysis of risk factors for a COVID-19 infection

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026