Covid Antigen Testing

What is "Antigen Testing"

Two types of diagnostic tests are currently available in the US. PCR tests detect viral RNA. Antigen tests, also called rapid diagnostic tests, detect specific proteins on the surface of the coronavirus. Antigen test results may come back in as little as 15 to 45 minutes; you may wait several days for PCR test results.

How reliable are the tests for COVID-19?
  • Positive Results: Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.

  • Negative Results: There is a higher chance of false negatives with antigen tests, which means that a negative result cannot definitively rule out an active infection. If you have a negative result on an antigen test, your doctor may order a PCR test or a second rapid antigen test to confirm the result.  Early data suggests that antigen tests may be even more likely to miss the Omicron variant. If you have a negative result on an antigen test, your doctor may order a PCR test or recommend a second rapid antigen test to confirm the result.

It may be helpful to think of a COVID antigen test as you would think of a rapid strep test or a rapid flu test. A positive result for any of these tests is likely to be accurate, and allows diagnosis and treatment to begin quickly, while a negative result often results in further testing to confirm or overturn the initial result.

Compare Popular Home Antigen Tests

We have chosen the following popular home antigen tests sold or developed by accredited providers. 

Brand
Product
Product Image
Collection
Sample Type
Highlights
Price
Purchase
FlowFlex COVID-19 Antigen Home Test
At-home
Nasal Swab
15-minute rapid test
$9.99 (1 test)
iHealth COVID-19 Antigen Rapid Test
At-home
Nasal Swab
15-minute rapid test
$19.80 (2 tests)
BinaxNOW COVID-19 Antigen Self Test
At-home
Nasal Swab
15-minute rapid test
$20.89 (2 tests)
Quidel QuickVue at-Home OTC COVID-19 Test
At-home
Nasal Swab
10-minute rapid test
$23.99 (2 tests)
On/Go at-Home COVID-19 Rapid Antigen Self-Test
At-home
Nasal Swab
10-minute rapid test
$24.00 (2 tests)
DiaTrust™ COVID-19 Ag Home Test
At-home
Nasal Swab
15-minute rapid test
$24.30 (2 tests)
QuestDirect COVID-19 Rapid Test
In-person visit
Nasal Swab
Integrated with Quest MyQuest
$30 (1 test)
BD Veritor at-Home COVID-19 Digital Test Kit
At-home
Nasal Swab
15-minute rapid test
$33.75 (2 tests)