How Long Can You Test Positive for COVID-19?

You can test positive for COVID-19 up to 90 days after your first positive result. However, if you recovered from the virus but were re-infected during this 90-day window, you may continue to test positive for a longer period of time.

The reliability of your COVID-19 test results depends, in part, on the type of test you choose. Antigen tests, also known as “rapid” tests that can be taken at home or administered at designated testing sites, cannot rule out an infection with a single negative result; under certain circumstances, they can also cause a false positive result to occur.

Nucleic acid amplification tests (NAATs) generally provide more accurate results than antigen tests. This type of test is performed at a laboratory or designated testing site. It can detect viral genetic material up to 90 days after your initial infection, even if you’ve already recovered from the virus, making it difficult to determine whether you’ve been re-infected during this 90-day period.

If you have tested positive for COVID-19 within the last 90 days, it is not recommended that you receive additional NAATs. Instead, use multiple antigen tests spread 48 hours apart; antigen tests should only continue to test positive a few weeks after your initial result.

If you are experiencing long-term effects of COVID-19 infection such as headaches, joint pain, or neurological problems, Flushing Hospital Medical Center’s Post-COVID Care Center may be able to help. To schedule an appointment, please call (718) 736-8204.

All content of this newsletter is intended for general information purposes only and is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment. Please consult a medical professional before adopting any of the suggestions on this page. You must never disregard professional medical advice or delay seeking medical treatment based upon any content of this newsletter. PROMPTLY CONSULT YOUR PHYSICIAN OR CALL 911 IF YOU BELIEVE YOU HAVE A MEDICAL EMERGENCY.

Tips on How to Avoid Purchasing a Fake At-Home COVID Test Kit

There was a time when many of us would stand in line for hours to get a COVID test, but due to the increased availability of at-home kits, more and more are opting to perform the test themselves. While home tests are very convenient, consumers must be careful that the tests they are purchasing are real.

Experts warn that inadvertently buying fake tests are not only are a waste of money, but they can also increase the risk of unknowingly spreading the virus and not receiving appropriate treatment.

Flushing Hospital offers the following information on how to avoid buying a fake test.

When purchasing a COVID-19 home test on-line, it is best to check the Food and Drug Administration’s (FDA) website: https://www.fda.gov/  The FDA maintains a running list of every SARS-CoV-2 antigen diagnostic test approved under its emergency use authorization (EUA) process. The list includes several types of test kits and features product brand names for easy reference. Websites selling false tests may falsely claim that that their tests are FDA approved so it’s important to check for authenticity.

When buying an over-the counter COVID test kit in person, it’s important that you purchase it from a reliable source, such as your local pharmacy or supermarket. It is strongly advised that you do not buy a test kit from a street vendor as they may be selling kits from oversees that are not FDA-approved or they may be selling old or fake kits in boxes that appear to be legitimate. Experts warn if the seller cannot produce a business license, then you should not buy a kit from them. Additional tips include avoid packaging in foreign languages and kits not sold in boxes.

Flushing Hospital warns when purchasing a test kit, avoid being tempted by lower prices and don’t rush to buy a suspect kit out of fear of limited availability.  You owe it to yourself and your loved ones to get a test kit that will offer you accurate results.

All content of this newsletter is intended for general information purposes only and is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment. Please consult a medical professional before adopting any of the suggestions on this page. You must never disregard professional medical advice or delay seeking medical treatment based upon any content of this newsletter. PROMPTLY CONSULT YOUR PHYSICIAN OR CALL 911 IF YOU BELIEVE YOU HAVE A MEDICAL EMERGENCY.