# Testing for COVID-19

- Link: https://tectonicsmediapublications.com/testing-for-covid-19/
- Published: 2025-09-24T19:38:56+00:00
- Author: News Team

## What to know

 * COVID-19 testing can help you know if you have COVID-19 so you can decide what
   to do next, like getting treatment to reduce your risk of severe illness and 
   taking steps to lower your chances of spreading the virus to others.

## Types of tests

Viral tests look for a current infection with SARS-CoV-2, the virus that causes 
COVID-19, by testing specimens from your nose or mouth.

There are two main types of viral tests.

### Nucleic Acid Amplification Tests (NAATs)

Nucleic acid amplification tests (NAATs), including PCR tests, are more likely to
detect the virus than antigen tests. NAATs tests are the “gold standard” for COVID-
19 tests.

Your sample will usually be taken by a healthcare provider and transported to a 
laboratory for testing and may take up to 3 days to receive results. Some NAATs 
may be performed at the point-of-care and provide results more quickly.

### Antigen Tests

Antigen tests* are rapid tests that usually produce results in 15-30 minutes. Positive
results are accurate and reliable. However, in general, antigen tests are less likely
to detect the virus than NAAT tests, especially when symptoms are not present. Therefore,
a single negative antigen test cannot rule out infection.

To be confident you do not have COVID-19, FDA recommends 2 negative antigen tests
for individuals with symptoms or 3 antigen tests for those without symptoms, performed
48 hours apart. A single NAAT test can be used to confirm an antigen test result.

*Self-tests, or at-home tests, are antigen tests that can be taken anywhere without
having to go to a specific testing site. Read self-test package inserts thoroughly
and follow the instructions closely when performing the test.

### When you get tested

 * Choose the right type of test for your circumstance.
 * When using an antigen test, follow the recommendations provided by FDA and the
   test’s manufacturer.
 * If you do not, your results may be less likely to correctly indicate whether 
   you have COVID-19 or not.

 * When using an antigen test, follow the recommendations provided by FDA and the
   test’s manufacturer.

 * If you do not, your results may be less likely to correctly indicate whether 
   you have COVID-19 or not.

## Choosing a COVID-19 test

### I want to get tested and:

#### I have not had COVID-19 or I have not had a positive test within the past 90 days.

You may choose a NAAT, including PCR, or antigen test. If you use an antigen test
and your result is negative, repeat testing following FDA recommendations.

#### I tested positive for COVID-19 in the last 90 days.

#### My first positive test result was within 30 days or less:

 * I have symptoms: Use an antigen test. Repeat negative tests following FDA recommendations.
 * I do not have symptoms: Testing is not recommended to detect a new infection.

 * I do not have symptoms: Testing is not recommended to detect a new infection.

#### My first positive test result was within 31-90 days:

 * I have symptoms: Use an antigen test. Repeat negative tests following FDA recommendations.
 * I do not have symptoms: Use an antigen test. Repeat negative tests following 
   FDA recommendations.

 * I do not have symptoms: Use an antigen test. Repeat negative tests following 
   FDA recommendations.

After a positive test result, you may continue to test positive for some time. Some
tests, especially NAAT tests, may continue to show a positive result for up to 90
days.

Reinfections can occur within 90 days, which can make it hard to know if a positive
test indicates a new infection.

Consider consulting a healthcare provider if you have any questions or concerns 
about your circumstances.

## Getting a COVID-19 test

### Buy self-tests (at-home tests)

Buy self-tests (at-home tests) online or in pharmacies and retail stores. If you
have health insurance, it may reimburse the cost of purchasing self-tests. Visit
FDA’s website for a list of authorized tests.

### Go to a testing location

 * Visit a community-based testing location, such as a pharmacy or health center
   near you. These locations may offer NAAT, including PCR, or antigen tests, and
   provide low- or no-cost testing. Free NAAT or antigen tests may also be available
   through your local health department.
 * Talk to a doctor or healthcare provider about other testing options that may 
   be available to you.
 * If you are a person with a disability, the Disability Information and Access 
   Line can help you access a test or find a test location.

 * Talk to a doctor or healthcare provider about other testing options that may 
   be available to you.

 * If you are a person with a disability, the Disability Information and Access 
   Line can help you access a test or find a test location.

## Interpreting your results

### If your COVID-19 test is positive

A positive COVID-19 test means the virus was detected and you have or recently had
an infection.

 * Take steps to prevent spreading COVID-19.
 * Monitor your symptoms. If you have any emergency warning signs, seek emergency
   care immediately.
 * Seek health care right away for treatment if you have risk factors for severe
   illness. Treatment may be an option to make your symptoms less severe and shorten
   the time you are sick. Treatment needs to be started within a few days of when
   your symptoms begin.

 * Monitor your symptoms. If you have any emergency warning signs, seek emergency
   care immediately.

 * Seek health care right away for treatment if you have risk factors for severe
   illness. Treatment may be an option to make your symptoms less severe and shorten
   the time you are sick. Treatment needs to be started within a few days of when
   your symptoms begin.

### If your COVID-19 test is negative

A negative COVID-19 test means the test did not detect the virus, but this doesn’t
rule out that you could have an infection. If you used an antigen test, follow FDA
recommendations for repeat testing.

 * If you have symptoms: You may have COVID-19 but tested before the virus was detectable.
   You may have another viral infection or illness.Take actions to help protect 
   yourself and others from health risks caused by respiratory viruses.Contact a
   healthcare provider if you have any questions about your test result.
 * You may have COVID-19 but tested before the virus was detectable.
 * You may have another viral infection or illness.
 * Take actions to help protect yourself and others from health risks caused by 
   respiratory viruses.
 * Contact a healthcare provider if you have any questions about your test result.

 * You may have COVID-19 but tested before the virus was detectable.
 * You may have another viral infection or illness.
 * Take actions to help protect yourself and others from health risks caused by 
   respiratory viruses.
 * Contact a healthcare provider if you have any questions about your test result.

 * You may have another viral infection or illness.

 * Take actions to help protect yourself and others from health risks caused by 
   respiratory viruses.

 * Contact a healthcare provider if you have any questions about your test result.

## On This Page

 * Types of tests
 * Choosing a COVID-19 test
 * Getting a COVID-19 test
 * Interpreting your results

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