1. It seems we have forgotten about the Lily Pad problem in #Alberta.

The lily pad grows in a pond and doubles in size every day. On day 30 it is full. The math quiz question is: on what day was the pond half full?
2. The answer is on day 29. But even more scary is what happens on day 31…
3. We can try to make the pond bigger (by stopping normal hospital activities to accommodate more lilies) and if we can do enough perhaps make it through day 31. But then comes day 32 (4x full capacity).
4. On day 32 despite all efforts there will be no way to accommodate more lilies but we will have 2x as many as the day before. They will not survive.
5. This is simple gr9 math. Alberta hospitals are in day 31 from #COVID19 point of view.

Hospitals do not start empty and there is a significant cost to attempts at emptying them.
6. Hospitals can only be expanded to a degree. Specialized staff can only be redeployed to a degree and existing staff pushed to a limit. Some specialized drug treatments have already been exhausted.
7. Patients can be transferred to other institutions as is occurring across the province but on day 32 this won’t be possible either.
8. Remaining options will be out of province transfers, and triage / rationing of care.
9. Then comes day 33 (8x full capacity).

And that is the problem with inaction from day 1 to 29. When it becomes obvious that the system is full, it is much too late to act.
10. Modest targeted measures would have helped then, as suggested by countless experts. Now only drastic action will fix this, unfortunately at much greater social and economic costs.

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More from @atrembla

27 May
My take on #alberta #covid #OpenForSummer plans...

The good:
Alberta numbers are way down from the peak of wave 3 a few weeks ago. The drop has been sharp in response to public health measures as well as increase 1st dose vaccination rates, now almost 60% for age 12+.
1/
We are seeing a resulting drop in new hospitalizations, although we are just off peak numbers of people still in hospital and in ICUs. Unfortunately many of these patients will take time to recover, some will have chronic sequelae and others will not survive to discharge.
2/
We are ready for some loosening of restrictions. Schools re-opened in person yesterday, and stage I restrictions will lift on June 1. Many of these are low risk outdoor activities. All good here, but things get more difficult at next steps.
3/
Read 14 tweets
14 Mar 20
1. Wondering why it is so important to act now to limit the spread of #COVID19 in North America? Most countries are on the same trajectory. What you see in the most affected countries in Europe we will see here unless we do something different.

ft.com/content/a26fbf…
2. We are simply at an earlier time point in the outbreak. We are dulled by the daily new case numbers, but a very consistent finding emerges. A doubling of cases about every 3-5 days. This is remarkably consistent in western countries. Including Canada. ourworldindata.org/coronavirus
3. So if the numbers seem low to you (e.g. in my Province of Alberta "only" 29 cases in 4.4 million pop), realize that we will be above 1,000 cases in 3 weeks and 30,000 in 6 weeks if we don't "flatten" the curve.
en.wikipedia.org/wiki/Coronavir…
Read 7 tweets

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