Healthcare worker COVID study completed: key insights on transmission
NCT ID NCT04336215
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This completed study followed 829 people, including healthcare workers and a comparison group, over several years to understand how SARS-CoV-2 spreads and who gets sicker. Researchers collected swabs, blood, and saliva samples along with survey data. The goal was to identify risk factors for infection and severe disease to better protect healthcare workers and the public.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could help identify which healthcare workers are at highest risk for COVID-19 and how the virus spreads, leading to better protection strategies.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't directly lead to new therapies. Results may not apply to other settings or populations.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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829 people
The number who actually took part.
- Started
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Apr 2020
- Finished
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Aug 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
* HCW from two RBHS hospitals: Robert Wood Johnson University Hospital (RWJUH) in New Brunswick and University Hospital (UH) in Newark ; (both hospital presidents have approved the study) * NHCW from Rutgers faculty, staff, and hospital employees without patient contact;
- Ages
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20 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 20 years and older * Hospital and RBHS healthcare workers who have regular direct patient contact (≥3 patients/shift) in emergency rooms or inpatient settings that is expected to continue regularly over the next ≥3 months and who work ≥20 hours in the hospital weekly (residents, clinical fellows, attending physicians, nurse practitioners, physician assistants, registered nurses, license practice nurses, medical technicians, respiratory therapists, physical therapists, clinical pharmacists, dentists, dental hygienists, or dental assistants) * Hospital workers who do not have patient contact and non-healthcare from the Rutgers faculty, postdoctoral students, administrators, and staff. Exclusion Criteria: * Previous diagnosis with COVID-19 * Pregnant or have been diagnosed with a new medical condition in the past 30 days or have had a change in medications in the past 30 days * Participants who have been hospitalized in the past 30 days, had and had an emergency room, urgent care visit, or have had surgery. * Participants who have a fever on the day of their first visit to the study site (for consent, biospecimen collection, etc.).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Clinical Research Center Rutgers-Robert Wood Johnson Medical School RWJUH East Tower -
New Brunswick, New Jersey, 08901, United States
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Clinical Research Unit Rutgers New Jersey Medical School
Newark, New Jersey, 07103, United States
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Environmental and Occupational Health Sciences Institute
Piscataway, New Jersey, 08854, United States
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RUCDR Infinite Biologics
Piscataway, New Jersey, 08854, United States
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Robert Wood Johnson University Hospital
New Brunswick, New Jersey, 08901, United States
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Rutgers School of Dental Medicine
Newark, New Jersey, 07103, United States
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University Hospital
Newark, New Jersey, 07103, United States
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