Scientists launch major study to track viruses in healthy and immunocompromised patients
NCT ID NCT01306084
First seen Jun 27, 2026 · Last updated Sep 15, 2026 · Updated 13 times
Summary
This study aims to collect samples and medical information from people of all ages who have or have been exposed to viral infections, including COVID-19 and herpes. Researchers want to understand how viruses affect healthy individuals versus those with weakened immune systems. Participants will provide blood, saliva, nasal swabs, and other samples over time, but no treatment is offered as part of this study.
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 research could improve our understanding of how viruses behave and evolve, potentially guiding future treatments or vaccines.
- What could go wrong
- This is an observational study, not a treatment trial. It does not test any new drug or therapy, so direct patient benefits are unlikely.
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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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2011
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Healthy or immunocompromised subjects with viral infections, or suspected of having a viral infection, or recovering from a viral infection, or a close contact of someone who has had or is suspected to have had an acute or chronic viral infection. Subjects may either be at the Clinical Center or samples may be sent to LID directly from subjects enrolled at non-NIH sites.
- Ages
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6 months to 120 years
- 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 1. The protocol is open to people of all ages; 1. Only patients greater than or equal to 2 years of age can be enrolled at the Clinical Center. 2. Patients who are less than 2 years old may be enrolled only remotely and will not be seen at the Clinical Center. 2. a. Persons having (or be suspected of having) a viral infection that is of interest to LID investigators. b. Persons that are a close contact of someone who has (or is suspected of having) a viral infection that is of interest to LID investigators or is about to receive or have recently received a viral vaccine. c. Persons that may have had a recent viral infection that is of interest to LID investigators that has since cleared d. Healthy persons who will serve as controls for (a), (b), or (c) above. These persons will be 18 years of age or older and able to provide informed consent. 3. Adults who are unable to provide initial consent may be enrolled providing procedures per Human Research Protections Program (HRPP) Policy 403 have been followed. 4. Only subjects that are NIH employees or contractors who work at NIH will be enrolled in the COVID19 antibody cohort study on this protocol. EXCLUSION CRITERIA 1. Patients who are unable to safely undergo study procedures and tests. 2. Patients unwilling to have samples collected and stored for future use. 3. For the healthy controls cohort: persons who are \<18 years old, decisionally impaired adults, and pregnant women
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
RECRUITINGBethesda, Maryland, 20892, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Does COVID-19 hide in the gut? scientists probe stool for clues
- Blood samples and health records could reveal why some COVID-19 cases turn severe
- Home antibody tests put to the test: can you read your own COVID-19 result?
- Can lung ultrasound reveal COVID-19's signature in the lungs?
- When the immune system Can't fight back: tracking three respiratory viruses
- The household maze: how does COVID-19 move between family members?