In the USA, the end of summer wave is receding rapidly in the South and West. Unfortunately, the autumn wave has now begun in the upper midwest.

These are the same states which experienced an autumn wave in 2020.

Oddly, the SEC states have cases falling fastest...
From Michigan to Montana, cases are rising in concert, just as they did in these same states this time last year.

In every one of these states, cases are higher this year than last year, despite widespread vaccination.
Hospitalizations are rising in each of these states, as well with the least vaccinated states are faster acceleration than the most vaccinated.

But, in all of these states, hospitalizations are higher this year than on this date in 2020:
Deaths have also begun to rise in each of these states with no discernable gap between high and low vax states. Perhaps vaccination rate correlates with hospitalizations but not deaths? What would be the causal mechanism behind that disassociation?
Conclusion: seasonality and susceptibility trump lockdowns, masks, vaccines, mandates, school closures. Policy and behavior don't drive transmission patterns.

Finally, for NY, CA, IL: Winter is coming.

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More from @Humble_Analysis

23 Sep
Euromomo.eu reports weekly "excess" mortality in 23 European nations; through Week 36 of 2021, there has been no significant excess for those under 45 years of age:
For those over 75, deaths were dramatically below normal in 2019 leading to excess deaths in 2020.

For those over 85, deaths in 2021 YTD are now below normal (compare to 2017/2018).

The ~30% of covid deaths driven by those >85 seems to have not created any excess mortality.
For those 45-74 in Europe, 2021 has seen significantly more excess deaths than 2020 (through Week 36), despite widespread vaccination campaigns.

This is especially true for 45-64, where 2020 deaths were on par with 2018.

Why is this year worse than last year for these cohorts?
Read 4 tweets
10 Sep
Six months ago, Vietnam had supposedly "handled" covid via masks, border controls, and contact tracing.

They were held up as a model for the world.

businessinsider.com/vietnam-corona…
Today, they have been in lockdown for over a month; streets are barricaded; people are confined to their homes.

"It is like living in a jail," 72-year-old Hanoi resident Ho Thi Anh said.

msn.com/en-xl/news/oth…
The army has been called in to enforce the lockdown.

People are being sentenced to 5 year prison terms for breaking quarantine.

usatoday.com/story/news/wor…
Read 5 tweets
9 Sep
Nepal: seroprevelance survey in Jul-Aug indicates at least 68.6% of population has already recovered from Covid.

Given reported deaths of 11K, this indicates an infection fatality rate of 0.06% in Nepal.

sify.com/news/70-of-nep…
Nepal had two waves of Covid infection; cases peaked and began a rapid descent at a time when only 1% of the population had been vaccinated.

Currently, with cases continuing to decline rapidly, less than 20% of the nation has been vaccinated.
Daily deaths in Nepal have declined 92% off peak, driven either by seasonality or by immunity from natural infection.

Given that >70% of the nation has been infected and recovered, natural immunity may now play a larger role in suppression than seasonality.
Read 5 tweets
7 Sep
"New infections have fallen sharply in nearly every nation in South America... reprieve has been so sharp and fast, even as the delta variant wreaks havoc elsewhere in the world, that experts cannot quite explain it."

seattletimes.com/nation-world/c…
“It’s not easy to explain.”

Experts at a loss to explain the sudden drop in cases across South America; there have been "no new sweeping or large-scale containment measures", travel and economic activity has picked up, schools have opened. Image
There is some attempt to credit vaccines for the decline - but there is no correlation between vaccination rates and case rates in South America.

In fact, Paraguay has both the lowest rate of vaccination and the lowest case rate. Image
Read 4 tweets
5 Sep
The flu has returned to India after an absence of ~18 months. This almost certainly indicates that covid has become endemic in India and that there will be no significant future waves.
Indian hospitals are reporting high numbers of sick patients - but only 0.1% are testing positive for covid (rate of false positives) but many patients are testing positive for the flu:

indianexpress.com/article/cities…
Seroprevelance surveys in India indicate that 2/3 of the population has antibodies to covid. Is that the HIT threshold necessary to end the pandemic phase, allow the flu to return, and mark covid as just another endemic virus?

indianexpress.com/article/explai…
Read 6 tweets
5 Sep
Canada opened the land border to fully vaccinated Americans on August 9th, hoping to spur recovery in their destroyed tourism industry.

Border crossings did increase somewhat at first but have steadily declined since: currently down 90% versus 2019:
It's not that Americans are afraid to travel, either: TSA passenger throughput has nearly recovered to pre-Covid levels:
So, why isn't anyone going to Canada? You need to download an app, upload proof of vaccination, get a PCR test, upload that into the app, and submit to random testing at the border. You also need to have somewhere you can quarantine for 10 days if you test positive in Canada.
Read 4 tweets

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