A: The test kits that I bought in mid-Dec 2021 from another source have an Oct 2022 date and I read that these tests were given emergency use approval by the FDA in Oct 2021, so I'm guessing that the shelf life is a year after the manufacturing date.

A: LBJB is not entirely correct - you can be contagious if you have a negative rapid antigen test. Here's a quote from Emily Landon, infectious disease expert and executive medical director for infection prevention and control at University of Chicago Medicine "Rapid antigen tests detect COVID-19 when people have a higher amount of virus particles in their system and are more contagious. But a negative antigen test doesn’t necessarily mean you aren’t contagious. If someone has COVID-19, but hasn’t yet reached the test’s threshold of viral particles, they may still test negative with an antigen test but positive on a PCR test. That’s why I tell people they should trust a positive antigen test, but be more skeptical about a negative one." And here is her advice on how to use the test: "...if you have symptoms and you test negative, you should not rule out COVID-19 just yet. In this case, we recommend getting a more sensitive PCR test. If you can’t get in for a PCR test quickly, it’s recommended to repeat the antigen test the following day, being sure to isolate until you get your PCR test and results.... "For those without COVID-19 symptoms, using these tests before a gathering will reduce (but not eliminate) the risk that someone attending has COVID-19. Remember: antigen test results can change quickly, and a negative result is really only trustworthy for eight to 12 hours....If you’ve had a known COVID-19 exposure, no test is going to make it safe for you to gather unmasked with high-risk individuals. Stay home.... "If you’re unclear about what your test result says, isolate and repeat the test in six to 12 hours. You’ll likely see a clearer line on the test strip next time." More helpful info at full interview https://news.uchicago.edu/story/when-should-i-use-rapid-covid-test-and-how-accurate-are-they

A: This brand is accurate & reliable. I have we cross-check it against other brand's tests. Remember please, the test answers the question "Am I contagious TODDAY?"

A: I bought the test, it gave a false positive.

A: This is an extremely accurate test, MS (despite working in healthcare, a statement that means nothing) doesn't understand how these tests work and is spreading inaccurate information. Basically, rapid antigen tests tell you whether or not you are contagious, NOT necessarily that you do or do not have COVID. If the test is positive, you have COVID and you are contagious (very slight false chance of a false positive). If you test negative you MIGHT have COVID, but you are probably not contagious. It is normal to have symptoms for a day or two before you show as positive on these tests, especially if you are vaccinated (early symptoms are immune response, ie, the vaccine working, not active virus), but you aren't spreading it until you show positive. PCR tests work entirely differently and are useless as diagnostic tools since they don't tell you anything about active infection, just that you have COVID genetic material in your system.

A: Search the name of the test (flowflex) and FDA and you'll see a press release about it being approved. All of them work similarly -- you need to use more than one, and if you get a negative it doesn't mean you don't have the virus and in a couple days you might get a positive test. If you get a positive, it very likely means you have the virus.

A: Actually, JR is correct. Antigen tests, which this test falls under, are more likely to generate false negative results, especially when someone doesn’t have symptoms. Multiple tests—over several days—improves the chance of catching asymptomatic infections because each test's sensitivity varies depending on where someone is in the course of their infection. Ideally/if possible, a person who thinks they might be infected or was in close contact with someone who is infected should get tested with an NAAT/PCR test after doing an antigen one at home or getting one at a testing site. It takes longer to get results, but the NAAT/PCR tests are the most accurate tests available. *For what its worth, I work in the healthcare field.

A: The FDA authorized this particular test so you are not required to use it more than once, contrary to what JR said above.

A: Hi Chuck, Thank you for Contacting Acon Labs Regarding Flowflex. We have 2 Manufacturing Plants, 1 in Hangzhou, China, and 1 in Tijuana, Mexico. We are based out of San Diego CA. Please let us know if you have any further questions. Thank you, Acon Labs Tech Support

A: Hi AA, We apologize for the Delay in getting back to you. Most private insurance companies and Medicare will pay for the cost of the Flowflex Covid 19 Test kits. Please feel free to contact tech support if you have any further questions @ (800)838-9502

A: Best to check with your insurance co for current situation. Also, currently a household may 4 free covid tests from https://store.usps.com/store/results?Ntt=covid&_requestid=37731.

A: Hi SR, Thank you for your recent purchase of the Flowflex COVID-19 Antigen Home Test. Please note this important information regarding the product Expiration Date. The FDA has granted several shelf-life extensions for Flowflex, and the new expiration date may be longer than what is on the box and kit contents. To check the new expiration date, please reference the table below by Lot Number. The Lot Number is located on the sticker on the kit box, to the left or on top of the Expiration Date. Lot Number Range New Expiration Date COV1100041 to COV1100088 October 2023 COV1110071 to COV1110266 November 2023 COV1120041 to COV1125011 December 2023 COV2010001 to COV2010100 January 2024 COV2020003 to COV2030010 February 2024 COV2030011 to COV2030023 March 2024 Please contact our Technical Support team at (800) 838-9502 if you require further assistance.

A: Hola María, Gracias por ponerse en contacto con Acon Labs con respecto a Flowflex. Los kits Flowflex están disponibles en la mayoría de las principales farmacias. No dude en llamar a la línea de soporte técnico @ (800) 838-9502 si tiene más preguntas.

A: The product made in China, although the company Acon is headquartered in California.