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Bosch develops rapid test for Covid-19

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Re: Bosch develops rapid test for Covid-19

#51

Post by dx034 »

gpderetta wrote: post #15
ThePhysicist wrote: post #10

Sounds really impressive, but writing "1,000 tests per day with just 100 devivces" is really marketing BS I think. They should've just written "10 tests per day per device".

Don't current testing machines have much, much higher throughput? Like in the thousands of tests per day? It seems the advantage of this new device is latency. Of course if they are cheap enough and easy to use that you can buy thousands of them and distribute to all hospitals then might also increase total throughput.

The idea is to not have a lab with a huge machine testing several thousand samples a day, but to have these devices spread out throughout the hospital and doctor's offices to test closer to the patient. A device will also be much cheaper than the fully automated devices in labs.

If it works and they can provide enough devices, this could be great. Logistics (getting samples and material to labs and handling them there) is one of the constraining factors at the moment.

Re: Bosch develops rapid test for Covid-19

#54

Post by gambiting »

gfosco wrote: post #24
diggan wrote: post #16

Earlier quoted context omitted.

The full quote is "A Bosch Vivalytic analyzer can perform up to ten tests in the space of 24 hours. This means it takes just 100 devices to evaluate up to 1,000 tests per day." which makes more sense, the 100 devices is just an example. But I agree that it's largely unnecessary, the initial "up to ten tests per day" would have been enough.

The full quote does one extra thing, it implies that buying 100+ of these machines is totally expected.

Can these machines do anything else after we're done with Covid-19? I assume they can run other tests?

Re: Bosch develops rapid test for Covid-19

#55

Post by henrikschroder »

usrusr wrote: post #20
ThePhysicist wrote: post #10

Sounds really impressive, but writing "1,000 tests per day with just 100 devivces" is really marketing BS I think. They should've just written "10 tests per day per device".

True. This is seems to be on one of the extreme ends of latency versus throughput optimization and its niche in the big picture of Covid-19 will be very small. But it appears to be a new test cartridge for an already deployed machine, so it makes sense to have it anyways. I don't know who the typical customer of an on-site lab in a box like that is, but I guess that as last part of the market will be defined by remot…

Universell, intuitiv, schnell!

Man, I love German advertising. It's like the one for Ritter Sport chocolate. SQUARE! PRACTICAL! GOOD!

Re: Bosch develops rapid test for Covid-19

#56

Post by dx034 »

blompa wrote: post #39
microtonal wrote: post #17

Earlier quoted context omitted.

Besides comparing times, I guess the accuracies or FP/FN rates are also important. The linked article states 95% accuracy for the Bosch test. Are there any numbers for the 5-minute test?

This article [0] suggests that false negative results will not be as problematic if we manage to start screening on a population level. Inaccuracy of up to 15% could still keep the viral R0 under 1.0 (the critical value for eliminating an epidemic). From the article: > "False negative rates up to 15% could be tolerated if 80% comply with testing, and false positives can be almost arbitrarily high when a high fraction…

Shouldn't we optimize for a higher number of false positives? In the end, sending someone in quarantine for 2 weeks without them being infected is probably less dangerous than a false negative. So making tests overly sensitive would seem more applicable to me here.

Re: Bosch develops rapid test for Covid-19

#58

Post by posterboy »

henrikschroder wrote: post #55
usrusr wrote: post #20

Earlier quoted context omitted.

True. This is seems to be on one of the extreme ends of latency versus throughput optimization and its niche in the big picture of Covid-19 will be very small. But it appears to be a new test cartridge for an already deployed machine, so it makes sense to have it anyways. I don't know who the typical customer of an on-site lab in a box like that is, but I guess that as last part of the market will be defined by remot…

Universell, intuitiv, schnell! Man, I love German advertising. It's like the one for Ritter Sport chocolate. SQUARE! PRACTICAL! GOOD!

The meter in German, "Quadratisch, praktisch, gut" is rhythmic at least

Re: Bosch develops rapid test for Covid-19

#59

Post by nfin »

gambiting wrote: post #54
gfosco wrote: post #24

Earlier quoted context omitted.

The full quote does one extra thing, it implies that buying 100+ of these machines is totally expected.

Can these machines do anything else after we're done with Covid-19? I assume they can run other tests?

they also simultaneously test for influenza A and B

Re: Bosch develops rapid test for Covid-19

#60

Post by jansan »

ThePhysicist wrote: post #10

Sounds really impressive, but writing "1,000 tests per day with just 100 devivces" is really marketing BS I think. They should've just written "10 tests per day per device".

This seems to be an existing product that was extended to test for coronavirus: https://www.bosch-vivalytic.com/en/product/vivalytic-analyse...

The device itself was apparently made available about two years ago: https://www.irishnews.com/business/2018/04/23/news/randox-bo...

So yes, this is a great achievement and excellent marketing.

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