RE: I think the big worries are:30 Jun 2020 14:02
(I'm holding shares for medium term before accusations start flying)
Perhaps others have insights here I am missing, but the more I think about the antibody tests the more I think they only have so much mileage in them.
Primarily, it seems there main use is as a research tool to see the extent the virus has spread in the past, and also to monitor whether antibodies are sustained or temporary (as the Roche tests are finding with NHS workers).
But in terms of their utility in suppressing further outbreaks, its pretty limited beyond informing public health approaches as it only reveals the previous spread of the disease and not current infection.
Additionally, once everyone has had a test in say, the UK, there's no real need to re-test on that scale: in countries like Italy they are simply to testing a representative sample and statistically modelling it to population scale.
I'm sure there will be a demand internationally for the tests, but I can't really see how demand will be on a population scale unless there is a well developed healthcare system - even then, once data from other studies becomes available (eg: UK mass-testing), would there be a need for population level screening or just representative samples?
While the order from Senegal is encouraging, I'm not convinced there's going to be a huge take up from many countries - given the expense of carrying out the studies - when the resources could perhaps be better deployed on additional testing for current infection.
I'd be keen to hear anyone's thoughts on this!
Warm Wishes