wallywombat:
Further, the point of testing (at least if done on a large scale like South Korea, rather than the half-arsed UK approach so far) is that it allows you to relax self-isolation in a controlled fashion, and quickly jump on any hotspots that reemerge. You test people who haven't developed symptoms yet, rather than waiting for them to show symptoms, by which time they would have been shedding virii for a week.
The point of self-isolation is to delay and flatten the curve - accept that most people will still get infected, but the numbers turning up at hospital per day won't be (too) overwhelmingly large. Also, delaying buys time to to manufacture more PPE, ventilators, construct temporary hospitals, train staff etc. Finally, the idea is that vulnerable people will be kept self-isolated for months. By the time they're "let out", most of the "healthy" population will have been been infected, recovered, and will now be providing herd immunity.
AJJewsbury:
The point of self-isolation is to delay and flatten the curve - accept that most people will still get infected, but the numbers turning up at hospital per day won't be (too) overwhelmingly large. Also, delaying buys time to to manufacture more PPE, ventilators, construct temporary hospitals, train staff etc. Finally, the idea is that vulnerable people will be kept self-isolated for months. By the time they're "let out", most of the "healthy" population will have been been infected, recovered, and will now be providing herd immunity.
Agreed. But the thing that worries me is how long do you have to stretch things out to achieve that? I tried some very (very) rough calculations - presuming things like 2.5% of victims will need intensive care, a massive increase in ICU capacity (including the new Nightingale and a few equivalents elsewhere - and presuming they can find all the extra ICU staff) and hopelessly hopeful assumptions like you can regulate things so every ICU unit is kept exactly at capacity - and for the UK sized population concluded that the process would take around 18 months - which seems like a lot more than the 3-weeks to 3-months that's often talked about - and an awful long time for most of the economy to be kept shutdown.
Chris Pearson:
I do wish that all this talk about ventilators would stop. Full ventilation requires an ITU bed and they require personnel, who cannot be trained in just a few days.
I do wish that all this talk about ventilators would stop. Full ventilation requires an ITU bed and they require personnel, who cannot be trained in just a few days.
Chris Pearson:
And then, what is the prognosis for a patient who is on ventilation? The figure for recovery (of hospital patients) published in worldometers.info is 4% of "closed" cases in UK. Those stats seem to show that 99% of cases have been "mild" as opposed to "serious or critical". So it appears that 135 lives at most have been saved so far in hospitals.
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