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These are rates per 100,000 for vaccinated, boosted and unvaccinated from Ontario (population 14 million). I don't see much benefit against infection to those

These are rates per 100,000 for vaccinated, boosted and unvaccinated from Ontario (population 14 million). I don't see much benefit against infection to those with 2 or 3 mRNA doses. The most recent datapoints (7 day average): - Not fully vaccinated: 14.86 cases per 100,000 people - Fully vaccinated: 17.39 cases per 100,000 people - Vaccinated with booster: 26.89 cases per 100,000 people https://covid-19.ontario.ca/data/case-numbers-and-spread#casesByVaccinationStatus https://covid-19.ontario.ca/data/case-numbers-and-spread#cas...

stock_toaster 5y ago
For infection rates, perhaps there is a bit of a confounding factor of vaccinated people being less careful (eg unmasking) due to confidence in their vaccination status? The deaths by vaccination status stats on that same page are pretty interesting.
- xyzzy123 5y ago
  The mrna vaccines have an impact on transmission / infection of omicron for about 4-6 months (there is longer-lasting protection against severe illness etc). This leads to very confusing debates, the "headline" stats used to sell the vaccine demonstrate high effectiveness (they tend to use data from the 4-6 month window where they know it will look good). The metastudies / long-term studies tell a more nuanced story.
- curmudgeon22 5y ago
  My thought on the most likely confounding factors is both requirement and proclivity to get tested. Vaccinated/boosted folk are more likely to be in situations requiring testing, thus finding more mild or asymptomatic cases. I'm not sure on who is more likely to get tested of their own volition for mild symptoms and could see arguments both ways, but could see it being a factor. Agreed, the deaths by vaccination status shows a stronger benefit, particularly with age.
reissbaker 5y ago
7-day average isn't particularly worthwhile for Omicron, which peaked months ago. Most people who were going to get it already got it. Ontario changed the way it reports COVID data in March, and thus finding prior data is annoying on my phone for Ontario specifically. But pretty much every other data source I've looked at agrees: during the Omicron peak, the vast, vast majority of cases per 100k were in the unvaccinated.

stock_toaster 5y ago

For infection rates, perhaps there is a bit of a confounding factor of vaccinated people being less careful (eg unmasking) due to confidence in their vaccination status? The deaths by vaccination status stats on that same page are pretty interesting.

xyzzy123 5y ago
The mrna vaccines have an impact on transmission / infection of omicron for about 4-6 months (there is longer-lasting protection against severe illness etc). This leads to very confusing debates, the "headline" stats used to sell the vaccine demonstrate high effectiveness (they tend to use data from the 4-6 month window where they know it will look good). The metastudies / long-term studies tell a more nuanced story.
curmudgeon22 5y ago
My thought on the most likely confounding factors is both requirement and proclivity to get tested. Vaccinated/boosted folk are more likely to be in situations requiring testing, thus finding more mild or asymptomatic cases. I'm not sure on who is more likely to get tested of their own volition for mild symptoms and could see arguments both ways, but could see it being a factor. Agreed, the deaths by vaccination status shows a stronger benefit, particularly with age.

reissbaker 5y ago

7-day average isn't particularly worthwhile for Omicron, which peaked months ago. Most people who were going to get it already got it. Ontario changed the way it reports COVID data in March, and thus finding prior data is annoying on my phone for Ontario specifically. But pretty much every other data source I've looked at agrees: during the Omicron peak, the vast, vast majority of cases per 100k were in the unvaccinated.