Does swab depth matter? study tests 2 cm vs 4 cm for COVID-19 detection
NCT ID NCT07597889
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a shallow (2 cm) or deeper (4 cm) nasal swab is better at detecting COVID-19 using rapid antigen tests. Over 300 adults in Denmark each received both swab depths, and results were compared to a standard throat PCR test. The goal was to find the best balance between accuracy and comfort.
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
-
Rigshospitalet
Copenhagen, Denmark
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