NSW published quite detailed figures about infection rates of vaccinated and unvaccinated people, as well as hospitalisations and fatalities.
Here are some interesting figures.
Vaccination status of cases in NSW:
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Looking at this graph, the immediate reaction is "look, most cases are vaccinated people, the vaccines don't work."
Looking a bit more closely, it is obvious that, during the Delta wave (August to end of October), there were way more unvaccinated cases than vaccinated ones. Then, during the Omicron wave (still ongoing), we see that, from mid-December (which is when the wave started here), vaccinated cases vastly outnumber unvaccinated ones.
How come? Two reasons, I believe:
- The vaccines are a lot less effective at preventing infection with Omicron than with Delta.
- At a vaccination rate of over 90%, there are nine times as many vaccinated targets for the virus than unvaccinated ones, so the vaccinated cases outnumber the unvaccinated ones.
Now let's look at the
vaccination status of hospitalised cases in NSW:
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Now the picture is very different. Unvaccinated hospitalisations vastly outnumber vaccinated ones for both Delta and Omicron. There is an uptick of hospitalisations in December, but it is small, despite the hugely higher number of infections.
The picture is very similar for
ICU cases:
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Unvaccinated people are way more likely to end up in ICU. Although there are fewer than 10% unvaccinated people in the state, they account for ten times as many ICU cases. In plain text: per capita, unvaccinated people are 100 times more likely to end up in ICU than vaccinated people.
And here is the
status for fatalities:
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Despite accounting for < 10% of the population, unvaccinated people account for about five times as many fatalities. Translation: an unvaccinated person is about 50 times more likely to die from Covid than a vaccinated person.
I think this makes it abundantly clear that, while the vaccines don't protect well against infection with Omicron, they greatly reduce the risk of hospitalisation and death.
In my book, that's a huge win.