billiontoone

5 ms·

1. 1.▲
   by billiontoone 6y ago

   Thanks; that is a good question. In our laboratory, we have a ratio of 10:1 for PCR to qPCR instruments. In the new laboratory that we are constructing, the ratio is 50:1. It was similar at Stanford academic laboratories during my PhD. Stan
2. 2.▲
   by billiontoone 6y ago

   $15 is half the price of even the bare minimum qPCR kits (e.g., TaqPath). We need to buy the reagents from NEB, IDT, and others and work with a contract manufacturer to mix it into a reaction. Reagent, manufacturing, quality control, and fu
3. 3.▲
   by billiontoone 6y ago

   Thanks for the question. Last week, I sent half-a-page of instructions in a hastily written e-mail to a scientist working for the Switzerland government response team, and they told me that it worked beautifully in their first try this week
4. 4.▲
   by billiontoone 6y ago

   I think we can scale it to significantly more than 1M a day, but it would require the relaxation of certain regulations that currently prevent collaboration between clinical laboratories and other institutions that have Sanger instruments.
5. 5.▲
   by billiontoone 6y ago

   Roche 6600/8800 instruments are state-of-the-art automated RT-qPCR machines. We need them as well as other COVID-19 testing instruments. That said, it is easier to ship the test kits than scale the instrumentation. Both Roche and Abbot
6. 6.▲
   by billiontoone 6y ago

   We have the data both with extraction and without and show that it does not make a difference with qSanger. In Figure 4, we add VTM directly to PCR reactions. Seracare VTM samples has SARS-CoV-2 viral RNA in a different capsid to prevent in
7. 7.▲
   by billiontoone 6y ago

   Both the methods and David's twitter clearly describe the linear regression as the method and how it works with spike-in. In practice, it is a lot more complicated, as the signal-to-noise ratio can interfere with the regression and pri
8. 8.▲
   by billiontoone 6y ago

   If it is specific to COVID-19 testing, we will not seek anything, as long as the end-user is not financially benefiting from it or importantly, selling qSanger kits. If they need our bioinformatics automation & help with set-up, we woul
9. 9.▲
   by billiontoone 6y ago

   I don't think we are in any way undervaluing the serological tests. A great serological test would be very useful. However, because of the indirect measurement, they tend not to be very sensitive or specific, so it is fair to say that
10. 10.▲
    by billiontoone 6y ago

    CEO of BillionToOne here. We have already generated and put into our scientific manuscript the data that FDA requires for EUA. As a high-complexity CLIA-licensed clinical laboratory, we don't see significant risk in getting the authori