Aaron Derfel Profile picture
Feb 2 12 tweets 5 min read
1) At least two countries in the Northern Hemisphere – Ireland and Denmark – have started lifting #pandemic restrictions despite the more contagious #Omicron variant and the fact deaths are still rising in the latter. In this thread, I will examine the risks of lockdown fatigue.
2) First, though, let us focus on Quebec's latest #COVID death wave, which is stubbornly resisting to subside. In fact, the current wave has surpassed the wave last January, when Quebec still had a curfew in effect at this point in 2021. Please take a look at the chart below.
3) The Quebec government is wary to discuss this, but I submit it must be held accountable on this score. Most deaths are now occurring among Quebecers who were at least 70, who had been living at home, many of whom did not get their booster doses in time.
4) As for #COVID hospitalizations, this fifth wave also has surpassed the one last January. During the peak last January, 1,525 Quebecers were #COVID hospitalized, 230 in the ICU. That compares with the current peak of 3,425 hospitalizations, 285 in the ICU. Please see below.
5) It’s under these circumstances that Quebec’s health-care system collapsed in the fifth wave of #COVID infections amid record absenteeism among burned-out health care workers. So why is Quebec now so keen to lift restrictions? montrealgazette.com/news/local-new…
6) The first obvious answer is lockdown fatigue among the general population in an election year in Quebec. Some of the protesters causing mayhem in Ottawa are from Quebec. “It’s a small minority but perhaps we should reach out to them,” Legault suggested diplomatically Sunday.
7) Mindful of the potential political cost, Legault – already in pre-electoral campaign mode – appears to have scrapped his proposed anti-vax tax, with the Ottawa protesters already claiming credit. But are there other reasons to lift restrictions so swiftly?
8) Not really. At least 45% of the population has received a third dose, still too low to counter the Omicron variant, plus the more contagious BA.2 “stealth” strain. The government is also citing declining hospitalizations – clearly a reassuring sign.
9) But Quebec’s health-care system has collapsed and needs much more time to recover. Authorities have still not assessed the impact of the return of students to poorly ventilated schools. And the stealth BA.2 variant is likely spreading fast.
10) In contrast, Denmark’s health-care system is more robust than Quebec’s and its ICU stays are dropping more markedly than in Quebec. What’s more, 67.2% of the Danish population has received a booster, much higher than in Quebec.
11) As for Ireland, its #COVID deaths, hospitalizations and ICU stays are all trending downward, something that has not happened yet in Quebec on the mortality front. Ireland also has the second highest uptake in Europe of vaccine boosters, 65%, after – you guessed it, Denmark.
12) Still, Denmark and Ireland are taking risks in their decisions to lift restrictions. Evidently, Quebec would be ill-advised to follow their examples now, based purely on the science of public health. Politics, however, are another matter. End of thread. Go get your shot.

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More from @Aaron_Derfel

Feb 3
1) Dr. Jordan Peterson (@jordanbpeterson), one of Canada’s preeminent intellectuals, cited a meta-analysis on Tuesday concluding that the average #COVID lockdown resulted in only a 0.2% reduction in mortality in Europe and in the U.S. Is that really true? Image
2) Given Peterson’s huge audience and his commitment to scientific rigour, it is worth stress-testing this meta-analysis that has appeared in Studies in Applied Economics. That would be part of the scientific method of open and fact-based debate.
3) It’s in that scientific tradition that I would like to report the reaction of various British scientists to this meta-analysis. Courtesy of sciencemediacentre.org, this is what Neil Ferguson, director of the MRC Centre for Global Infectious Disease Analysis, had to say:
Read 10 tweets
Feb 2
1) Quebec’s new chief of public health, Dr. Luc Boileau, asserted on Wednesday he believes the province’s severely weakened health system could handle a potential influx of long #COVID patients. In this thread, I will examine whether this assertion stands up to closer scrutiny.
2) This is what Boileau said in response to a sharply focused question by the @mtlgazette’s @JesseFeith: “I think we are. I think it’s going to be a challenge. I think the more they are vaccinated, in particular with the 3rd dose, the less they are at risk to develop long COVID.”
3) Dr. Boileau may have confidence in Quebec’s health-care system, but it’s been years since he managed the Montérégie health authority. The system today is in much worse shape than when Boileau ran hospitals and clinics on the South Shore 13 years ago.
Read 15 tweets
Jan 30
1) On Nov. 30, 2012, François Legault, as leader of the then-fledgling Coalition Avenir Québec, pronounced that he was “shocked” when he read a report by the province’s auditor-general on the poor quality of air in elementary schools back then. What has he done since about this?
2) Back in the fall of 2012, Legault was not in power. The Parti Québécois was, and the Liberals formed the official opposition. Still, Legault issued a news release in which he deplored the state of the province’s schools. See the press release below.
3) The auditor-general’s report to which Legault alluded was 50 pages long. The report mentions the word “ventilation” 48 times in those 50 pages. The report itself referred to other studies going back to the year 2000 calling for improved school ventilation. See below.
Read 10 tweets
Jan 29
1) For the longest time, Montreal remained the epicenter of the #COVID19 pandemic in Quebec. But in a disturbing new development, the Indigenous-populated Far North of the province is now reporting the highest number of cases per capita.
2) In this thread, I will examine this new trend — one that probably deserves more attention by public health authorities. The Health Ministry chart below shows Nunavik and Terres-Cries-de-la-Baie-James now recording the highest #COVID incidence of any region in Quebec.
3) Perhaps this could be a perverse artifact reflecting much lower #COVID screening in the rest of the province. But the chart below prepared by the Cree community reveals a particularly low adult vaccination rate of 45% in Mistissini.
Read 8 tweets
Jan 29
1) COVID deaths are again rising in the U.S. as mass vaccination of booster shots has stalled. In contrast, Quebec’s #pandemic wave of deaths is beginning to subside following a ramp-up in boosters in the adult population. In this thread, I will delve into these latest trends.
2) According to the latest analysis by the Institut national de santé publique, Quebec’s seven-day average of #COVID deaths per million population has decreased to 7 from 8.4 a week ago. By comparison, the rate in the U.S. climbed by 1.2 to 6.8 during the same period. See below. Image
3) The resurgence in #pandemic mortality in the United States follows a plateauing of booster shots administered there in recent weeks. Meanwhile, the chart below shows a steady increase in boosters given in Canada to counter the #Omicron variant. Image
Read 9 tweets
Jan 28
1) Quebec’s new chief public health officer stunned the scientific world Thursday when he seemed to shrug off the precautionary principle and dismissed installing air purifiers in schools during the #pandemic. What key knowledge does Dr. Luc Boileau possess on this subject?
2) "We don’t have to deploy this equipment, which has not been shown in a school context to be a factor of improvement (in dealing) with COVID in particular,” Boileau said at a news conference. “There’s no demonstration on the scientific side.”
3) In this thread, I will draw your attention to what just a few other jurisdictions and scientific bodies have had to say about air purifiers in schools, each one applying the precautionary principle during the worst respiratory #pandemic since the 1918 Spanish Flu.
Read 9 tweets

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