Mapping the virus: nationwide study seeks to uncover true COVID-19 spread
NCT ID NCT04658121
First seen Jul 16, 2026 · Last updated Jul 17, 2026 · Updated 1 time
Summary
This study aims to estimate how many people in various US communities have or have had the SARS-CoV-2 virus. Researchers will test blood and nasal swab samples from over 26,000 adults and children living in senior facilities, attending outpatient clinics, or residing in select neighborhoods. The findings will help determine the best locations for future COVID-19 treatment and prevention trials.
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 the best communities for testing new COVID-19 treatments and vaccines.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't directly benefit participants. Results depend on accurate testing and community participation.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for COVID-19 are added.
By submitting, you agree to our Terms of use
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
Show contact details
Enter your email to view the contact information for this study.
By submitting, you agree to our Terms of use
Locations
-
Baylor College of Medicine
Houston, Texas, 77030, United States
-
Bronx Prevention Center
New York, New York, 10451, United States
-
Children's Hospital Colorado CRS
Aurora, Colorado, 80045, United States
-
Cincinnati CRS
Cincinnati, Ohio, 45229, United States
-
Harlem Prevention
New York, New York, 10027, United States
-
John's Hopkins CRS
Baltimore, Maryland, 21218, United States
-
New Jersey Medical School CRS
Newark, New Jersey, 07103, United States
-
New Orleans Adolescent Trials Unit CRS
New Orleans, Louisiana, 70118, United States
-
Penn Prevention CRS
Philadelphia, Pennsylvania, 19104, United States
-
Physicians & Surgeons CRS
New York, New York, 10032, United States
-
St. Louis University VTEU-CAIMED-PHSU
Ponce, Puerto Rico
-
The Ponce de Leon Center CRS
Atlanta, Georgia, 30308, United States
-
U of Miami, IDRU at Jackson Memorial Hospital CRS
Miami, Florida, 33136, United States
-
UIC Project Wish CRS
Chicago, Illinois, 60612, United States
-
University of Pittsburgh
Pittsburgh, Pennsylvania, 15260, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Brain fog after COVID: can two common drugs clear it?
- Could a five-day pill course cut COVID-19 deaths? czech nationwide data puts molnupiravir to the test.
- Can COVID-19 and emergency surgery be safely managed together? a massive hospital study seeks answers
- Text or call? study tests best way to boost COVID shots in schools
- Fish oil and Body's own healing molecules could lift long COVID depression
- 13,000 volunteers shed light on who gets sick from COVID-19