• out of stock

20x COVID-19 Rapid Antigen Tests $139.99 in-Store, $149.99 Delivered (Out of Stock) @ Costco (Membership Required)

1080

Works out to be $7 per unit in-store or $7.50 per unit delivered, which I think may be the cheapest around at the moment.

Description from Costco website:

All Test COVID-19 Antigen Rapid Test (Oral Fluid), at home use for the rapid detection of proteins associated with the COVID-19 virus.
This product features:
• ARTG Listed Product No 376310
• Easy and disposable test kit, for one-time use only
• Covid-19 home use self-test kit
• Delta Variant detectable
• Non-invasive Oral Fluid test
Note: Unfortunately this item can not be shipped to SA or WA.

May come in handy for those who need to visit immunocompromised/elderly people at short notice.

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Comments

  • +5

    good find. thanks

  • +1

    How accurate are these tests? What's the % of false results?

    And also how far into the infection will these tests detect covid?

    Seems a decent price though

    • +19

      They’re pretty good, but not perfect.

      Useful if you’ve been somewhere where someone had covid, or you need to show you tested negative and have no known contact with a covid case.

      If you have been in close contact though, or showing symptoms, you need to get a proper test.

      • +1

        or showing symptoms

        I think you'll find people with a head cold or runny nose will get these. The primary school cohort in Melbourne clog the testing sites every day at the moment give positive cases are appearing every day and often multiple kids at once.

      • Are they approved to be used for clinics and hospitals as a replacement for appointments?so you won’t need to get a negative check at the hospital which is a waste of time/

        • +1

          Are they approved to be used for clinics and hospitals as a replacement for appointments?

          No, that is not their purpose.

      • -8

        Jv you say this is pretty accurate how many times have you used this? have you had covid 10 times?

        • +2

          Jv you say this is pretty accurate

          From what I've heard and read about it… But not as accurate as the drive-up tests, but accurate enough to make a difference in reducing the risk of transmition.

      • In NSW and Vic if a school child is a close contact they can still go to school take a rapid test daily; until they test negative on a day 6 PCR.

        • That's incorrect at least for VIC.

          It depends if the child is partially vaccinated or fully vaccinated at the time of exposure.

    • I looked into this months ago: from memory…. false negatives are in the decimals of percent chance. And false positives are something like 1% (of people who have a different coronavirus: eg. Are sick anyway).

      So "extra safe" i guess. But thats why a positive result means drivethrough test time.

      • +6

        Huh - the info sheet at the TGA says it misses 10% of infections (sensitivity 90.1%). Cheap for a reason.

        https://www.tga.gov.au/sites/default/files/covid-19-rapid-an...

        • The infections it misses as those which are shedding less virus, ie less infectious.

          • +6

            @JohnHowardsEyebrows: In the real world a good chunk are likely due to improperly administered tests (why these tend to be not much more effective than flipping a coin outside clinical tests).

            Also, it seems to miss more earlier cases than later cases. Actually missing up to 15.4% of positive cases in 0-3 days since symptom onset, but only 6.5% 4-7 days after symptom onset. So it's more useful when you've probably had enough time to seek a PCR test anyway. :\

            As long as you administer it properly I guess it's an added safety net, but only really a net gain if people don't use a negative result as 100% proof and become more reckless as a result.

            • +3

              @jkart: It doesn't look like they've counted people not following instructions in there for the specificity and sensitivity, I mean how can you really test that :P

        • +2

          Thanks for that, they're less effective than the breath sampling ones. Wouldnt have expected that.

          Thats OK, a 90% chance to catch a hidden infection is still better than 0% if you're about to expose a vulnerable community.

          90% less covid would be a nice chunk…

          Other tests are more senitive.

          Has anyone looked up the coles ones? ($10 each, in a 5 pack, $50)

          • @MasterScythe:

            if you're about to expose a vulnerable community

            Who does that include? What about everybody else?

            • @ozhunter: Any group who is statistically at higher risk of complications from infection.

              You're absolutely allowed to use them as often as you want.

              You're allowed to expand the definition of "vulnerable" when it comes to you taking responsibility for your actions; you dont need to ask me for permission.

              • @MasterScythe: I guess if you only take it when you see certain people then you don't care about spreading covid to everyone else.

                • +1

                  @ozhunter: You should talk to a professional about your life outlook if that's what you guess from that statement, its and extremely unhealthy 'default' to fall back on. Its not healthy to expect people to live 'to the lowest denominator' (be that health, behavior, or ethics), we should always demonstrate a sensible level of additional care, directly proportional to the level of risk.

                  By your logic, the fact that a doctor lets a healthy person outside of a sterile clean-room means they dont care, because they're not being treated as carefully as someone who, say, just got a new heart.

                  Allow me to clarify:

                  Additional care for a specific group does not denote a lack of care for another.

                  Its similar to handrails in bathrooms.

                  Just because they're more often needed for the elderly or disabled, doesnt mean that level of extra care is needed for everyone.

                  Understand?

                  To bring it back; a disease that the healthy can be vaccinated against, and is likely to be mild for them; can mean a death sentence to someone with a compromised immune system.

                  I hope thats cleared it up for you, and I hope you find joy soon.

                  • +1

                    @MasterScythe: Realistically, you don't when you might come across a vulnerable person, so shouldn't you take the test everyday just in case if you're that worried about spreading covid instead of when you knowingly will interact with a vulnerable person.

                    I hope you find joy soon.

                    Thanks for you concern, but I found it long time ago 😁

                    • +1

                      @ozhunter:

                      Realistically, you don't when you might come across a vulnerable person, so shouldn't you take the test everyday just in case if you're that worried about spreading covid

                      Interesting point.

                      I tend to make a trip into a town once a fortnight, occasionally weekly, for groceries and typical rural supplies. All my export is no contact.

                      So the expectation that i use one before i go into town once a week, isnt too big of an ask.

                      Ok you've convinced me. I shall.
                      Thanks for the insight, Ive ordered 2 packs, should last me a year.

                      Thanks for the eye opener.

        • +1

          That's about what you expect from rapid antigen testing. If you take several test one or more days apart the chances of a false negative (person has covid but test showing negative) returned on all tests becomes:

          2 tests : 0.98%
          3 tests: 0.10%

      • +2

        Been around in the UK for months. Do 2 tests and you are 99%

        • +2

          Everyone in the UK can get 7 tests FREE PER DAY. My brother sent me heaps.

          If you know anyone there, just pay postage

      • +1

        How does this product work exactly?

        You spit into one of the 20 vials, and wait for the liquid to turn a particular color indicating test status?

        • +2

          Exactly. You can't have a higher false positive rate than the total positive results.

          So when Queensland had zero positive results for several months with hundreds of thousands of tests: then the false positive rate has to be less then 1/100000

      • +4

        It is likely that positive tests soon after recovery represent persisting excretion of viral Novel RNA, and it should be noted that PCR tests cannot distinguish between “live” virus and non-infective RNA.

        https://www.health.gov.au/sites/default/files/documents/2020...

        • +1

          Yep, and if you've tested positive before, thats why you get a test every 3 days, to make sure your load isnt skyrocketing.

          For an island nation, we go alright *nods

    • its used by business, they buy them if doing a procedure

    • +1

      This particular test has a 97% accuracy.
      (97.0% (95%CI*:94.9%~98.5%))

    • +2

      The nasal swab ones are thought to be much more accurate than the saliva tests (like this one)

    • I do not believe the sensitivity or specificity data is being released by the manufacturers, TGA, or the retailers.

  • +13

    You can pool the swabs if you want to save money and get closer to your family.

  • +16

    According to the TGA, made in China?

    • +17

      Getting negged for stating the country of origin. How classy the ozbargainers are… or maybe there are some other factors at play.

      • +9

        Its the fox news approach.
        Stating a fact without stating you intention, can risk leading people to assume you meant it was negative.

        Odds are people would gravitate to: "eww China" not "hey, labour is cheaper there, nice savings!"

        And this is a dedicated savings site.

        • +1

          Stating a fact without stating you intention, can risk leading people to assume you meant it was negative.

          That's the big problem with human nature. Always sees the worse/negative first.

        • -6

          Odds are people would gravitate to: "eww China" not "hey, labour is cheaper there, nice savings!"

          The labour is cheap because the government uses forced labour. I'd love to hear how you think that is ok.

          • +9

            @1st-Amendment:

            I'd love to hear how you think that is ok.

            Would you though? I feel like you're lying.

            I think you would attack someone for their opinion on that topic, if it didnt align with yours.

            Besides; not every employed person in China is forced. My workmate is Chinese, before he moved here, he held plenty of voluntary jobs.

            Your brush is far too wide.

            • @MasterScythe:

              Would you though? I feel like you're lying. I think you would attack someone for their opinion on that topic, if it didnt align with yours.

              Interesting. So your opinion is based on what you feel rather than any actual facts. Living up the stereotype lol…

              Besides; not every employed person in China is forced.

              Oh well that makes it ok then…

              • @1st-Amendment: Well, the way you worded it, made it sound like you expected an answer that didnt line up with your own beliefs.

                So for arguments sake, lets say you were correct.

                Why then would you "love to hear" someone defend forced labor?

                Why would that be enjoyable to you?

                well that makes it ok then…

                Exactly.

                • @MasterScythe:

                  Well, the way you worded it, made it sound like you expected an answer that didnt line up with your own beliefs.

                  If that's what you thought then that's all on you. You'll never learn new things if continually just assume what the other person is thinking

                  Why then would you "love to hear" someone defend forced labor?

                  Because I enjoy hearing different opinions

                  Why would that be enjoyable to you?

                  Because I enjoy hearing different opinions

                  Now enough about me, back on topic, why do you think forced labour is ok, as long as it's "not every employed person"?

                  • @1st-Amendment: I didnt say that.

                    Regardless, its none of the employed people.

                    Forced labour isnt employment.

                    • @MasterScythe:

                      I didnt say that.

                      You said "hey, labour is cheaper there, nice savings!"

                      So, do you think it is a "nice saving" when your bargain is due to slave labour?

                      The reason that "people would gravitate to: "eww China"" is because most people do not support slavery. But hey if that's you, at least you're open and honest about it.

                      • @1st-Amendment: why it's cheap, doesn't change the saving percentage; so yeah, it can absolutely still be a nice saving.

                        Also, you dont need to support something, to exploit the positives of a bad situation.

                        In fact, unless you control the bad situation directly, thats usually the only way you can ensure some good does come from a bad situation.

                        I dont support cruelty to animals either, but I still enjoy a half work day on Melbourne Cup.

                        • @MasterScythe:

                          exploit the positives of a bad situation.

                          At least you're open and honest about your position towards slavery. As long as there is a bargain to be had, why should you care about human rights.

                          I'm interested if this extends to the former American slaves or Nazi death camps. Plenty of bargains to be had there….

                          • @1st-Amendment:

                            At least you're open and honest about your position towards slavery

                            Yep, against it, as i said.

                            As long as there is a bargain to be had, why should you care about human rights.

                            You seem to be thinking these are mutually exclusive.

                            You should care, because they're people.

                            I'm interested if this extends to the former American slaves or Nazi death camps.

                            Absolutely. Im against them also.

                            Plenty of bargains to be had there….

                            I have owned some 'era' made products, I agree, the construction quality can be amazing.

                            Does 2nd hand quality products count as 'bargains' though? I guess thats up to you.

                            • @MasterScythe:

                              Yep, against it, as i said.

                              Words say against it, but actions say happy to support it financially. Standard virtue signalling behaviour…

                              • @1st-Amendment:

                                Words say against it

                                Yep, and if you trust me or not, is your hang up. Not mine. I know i trust me.

                                What suggests im happy about it?

                                I can be happy with a bargain, without being happy about the "why".

                                Ive bought deceased estate before.
                                Am I happy it was cheap? Of course! Am i happy the reason is that this person died alone (no will)? Nope!

                                Also, what suggests 'happy' as opposed to indifference or perhaps anti-with-a-weak-conviction?

                                • @MasterScythe:

                                  I can be happy with a bargain, without being happy about the "why".

                                  Because why is important to most people. Stealing isn't usually considered a "nice bargain" because you got it for free.

                                  Ive bought deceased estate before.

                                  Not even close to being similar. Buying a deceased estate does not support or promote anyone being killed. The family doesn't sell a deceased estate then go find more family members to kill to make more money.

                                  Also, what suggests 'happy'.

                                  Your comments "hey, labour is cheaper there, nice savings!"

                                  • @1st-Amendment: Sorry you feel the world is so black and white.

                                    At least i was able to give you something you love, by discussing it with you.

                                    Take care.

                                    • @MasterScythe:

                                      Sorry you feel the world is so black and white.

                                      I don't feel that at all. You really need to work on that…

          • @1st-Amendment: If you mean the prisoners, yes, I think they should better be working (on an 8-hour shift) rather than doing drugs and watching TV all day spending taxpayers' money.

            If you mean otherwise, well, I can only say, don't learn serious news from South Park (which I liked, but it's just an ironic show).

            Also, the chance you get the prison labor stuff is super low, those things are mostly strategic resources acquired by the nation.

        • According to Costco's own description the country of origin is Australia, so risks leading people to believe it's made in Australia.

          Ozbargainers can make up their own minds as to whether to buy or not.

      • -1

        Personally I see the country of origin as irrelevant, so stating it so directly suggests a negative connotation, which some people will downvote.

      • TBH don't care what OB people say (neg away) - as I said below Costco states the country of origin as Australia. I would naturally assume it's made locally.

    • According to Costco its origin is Australia. But on govt site its from China.

      Costco needs to correct their website

      • -7

        The Costco warehouse is in Australia

        The stores get them from the warehouse.

        Ergo, they are from Australia.

        • You should look up the definition of "origin".

    • +1

      From what I can see on the TGA website, a lot of test kits (even the ones used at the test sites) are coming from China.

    • And the problem with them being made in China is?

      • Not sure, I guess "China"?? is it?
        Do we have any other option? I guess not. Most OzBargain deal are because as someone said above "Hey! labour is cheaper there, nice savings!"
        :)

      • +2

        The problem is that it's incorrectly represented by Costco as to where it's made.

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