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Corona virus disease 2019 (COVID-19) antibody seroprevalence of the medical staff in the hospital with cluster of COVID-19.

Long-term follow-up of corona virus disease 2019 (COVID-19) antibody seroprevalence in the cohort of employees at hospitals with or without cluster of COVID-19. - Long-term follow-up of COVID-19 antibody seroprevalence in the cohort of medical staff.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000040453
Enrollment
2500
Registered
2020-05-25
Start date
2020-05-25
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

COVID-19

Interventions

None listed

Sponsors

Daini Osaka Police Hospital
Lead Sponsor
Osaka Police Hospital Department of Clinical Immunology, Graduate School of Medicine, Osaka University
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Employee of Osaka Police Hospital and Daini Osaka Police Hospital at May 2020. Person who received regular medical checkup.

Exclusion criteria

Exclusion criteria: Person who don't want to participate the study

Design outcomes

Primary

MeasureTime frame
Total number of COVID-19, including those infections that might have been missed (include asymptomatic cases)

Secondary

MeasureTime frame
Incidence of seroconversion in high-risk population (working in hospital with cluster, job, and exposure to COVID-19). Timeline of seroconversion. Development of herd immunity.

Countries

Japan

Contacts

Public ContactAtsushi Ogata

Daini Osaka Police Hospital Departmrny of Internal Medeicine

a24ogata@icloud.com06-6773-7111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026