andrewducker: (Default)
[personal profile] andrewducker
Researchers have developed a test for COVID 19 antibodies. Which means we have a method for telling who has had the virus, and is now immune to it.

Those people are _safe_. They can't catch the disease any more, which means they can't spread it (excepting on their clothes, I assume, which is probably reasonably low-risk).

That means that they're the best people to put on the front line. Get them on the tills at supermarkets, driving the food trucks, and opening the schools up (albeit only for children who have also got the antibodies).

Basically, we can start dividing the world into those who are safe and those who aren't - and the safe people can be a lot of use to those of us who are still waiting to catch it. Particularly the people who are at-risk.

I wonder how fast this could be scaled up.

Note: I am completely sure that this has drawbacks. If nothing else the tests will take ages to make available in volume. And it relies on much much more testing, (although we're going to end up doing a ton of testing for either the infection or the immunity, or both).
And it does rely on the immunity lasting a while. I'm hoping it will mostly last the two years that SARS did. If it lasts only a few months then we're in an awful lot of trouble.

Date: 2020-03-23 02:46 am (UTC)
reverancepavane: (Default)
From: [personal profile] reverancepavane
The big advantage of this is that engineered enzyme should be pretty easy to clone, which reduces the effective cost of the test (in terms of both time and materials) from the current PCR-based genetic assay. Which means that more testing can be done, which studies have shown needs to be done, because where testing has been more comprehensive a lot of carriers are actually unaware they have the virus at all.

[Plus blood tests are a lot easier to perform (especially considering that one of the two sites where samples need to be collected at the moment is where Romans used to tickle themselves with a feather to induce vomiting in large feasts).]

The downside is that you have to have had the virus for at least three days for the test to work. On the other hand, actually not knowing whether they have a simple cold or the coronavirus is seriously worrying people more than it should, so this should hopefully normalise some of the panic.

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