Simpson's Paradox applies here: once you slice by age, the data tells a different story. Even when vaccines are highly effective, the confounding factor that gets lost when you aggregate across ages is that the most vulnerable (the elderly) are also the most vaccinated.
I highly recommend anybody concerned about hospitalization among the vaccinated read this post. It's about Delta hospitalizations in Israel 2021, but we should expect the same effect from Omicron and across countries: https://www.covid-datascience.com/post/israeli-data-how-can-...
I highly recommend anybody concerned about hospitalization among the vaccinated read this post. It's about Delta hospitalizations in Israel 2021, but we should expect the same effect from Omicron and across countries: https://www.covid-datascience.com/post/israeli-data-how-can-...