Fresh Omicron news from Germany (using official federal sources). Very good news for unvaccinated people.
Nearly 80 percent of reported cases of the Omicron COVID-19 variant in Germany occurred in fully vaccinated individuals, according to a new report from the federal government.Note: This article has been updated following an error by the German federal government. Following publication, the...
thenationalpulse.com
"showing that vaccinated individuals were over 21 times as likely to contract the COVID-19 variant"
Nope, it doesn't show that at all.
It
would show that if the underlying population sample had an equal number of vaccinated and unvaccinated people, but it doesn't. The figure of "21 times" is arrived at by dividing 4020 by 186, but that is not the right calculation to do.
Over 70% of the German population is fully vaccinated. That translates roughly to 83% of adults, (assuming similar demographics to the UK). It depends on what the underlying population for this survey is (it isn't really a survey, it is just a partial data gathering where the data is available, and it doesn't state what the underlying population is). Or about 90% of adults at least partially vaccinated.
From the report we have 6,788 cases of which 4020 (59%) are fully vaxxed, 2,582 (38%) partially vaxxed, and 186 (3%) unvaxxed. That's 97% at least partially vaccinated. So probably the underlying population we're talking about is adults (if it included children there would be a
lot more unvaxxed).
So, what we are left with is 90% of the population generating 97% of the cases, and 10% of the population generating 3% of the cases. That's something like a 3 times advantage, not 21 times.
Even that probably isn't the whole story, since it is pretty obvious (from the UK MSOA local authority data) that people who care enough to get vaccinated are also more likely to get themselves tested if they have only mild symptoms. That's an extra bias which is showing up in stats only now that the test positivity rate is going up nearly everywhere.
The upshot is that this is exactly the sort of result we would expect to see if the vaccines are not very effective at preventing sympomatic infection. Which is what we know already from studies on AZ and Pfizer - the antibodies wane over time (while the T cell response doesn't, at least not so much).
So it's not 21 times anything, it's probably not even 3 times anything, it's not particularly good news for the unvaccinated.
It doesn't tell us anything either about the effectiveness of the vaccines against severe illness, because the data's not there.
It rather looks like the National Pulse has an agenda here, and is cherry-picking and misrepresenting data (it's only them, not the Koch Institut, making the 21 times claim).