Italy: study linking vaccine registry (began Dec 27) & Covid-19 surveillance; 7.37m vaxed people up to Apr 4, when 65% had received 1 dose of BNT-Pfizer (Comirnaty). Here you see how they compare to everyone vaxed to date (VaxZevria=AZ, Janssen=J&J)...1/n
...This is how many had 1 or both doses in the study, compared to whole of Italy in early May: blue = fully vaxed, maroon = 1 dose. No one has had a second dose of AZ vaccine, but most people with mRNA fully vaxed.
And here's the link to the report epicentro.iss.it/vaccini/pdf/re… ..2/n
..There's no control group in this study or breakdown by region/context for the pandemic, so before we look at what happened to Covid-19 diagnoses in vaccinated people, here's Covid-19 diagnoses in Italy across the same time (from Our World in Data) ourworldindata.org/coronavirus ...3/n
...After the heartbreak of what happened in northern Italy last year, it's particularly wonderful to see this: the ratio of Covid-19 diagnoses from 0 days from the first dose of vax, in different age groups (anni = years of age) ...4/n
... Hoping someone who speaks Italian fact-checks this! 🙏 ... 5/n
...Ratio of Covid-19 diagnoses in the 2 first priority groups (healthcare workers on the left), BNT-Pfizer vax ...6/n
...Ah - they do have calculations that adjust for regions, but that's out of my league to decipher in Italian ...7/n
...From 35 days after the 1st dose (= fully vaxed for the people getting mRNA)
- Reduction in diagnoses: 80%
- Reduction in hospitalization: 90%
- Reduction in deaths: 95%
And here's the summary iss.it/web/guest/prim… ...8/8
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