Coronavirus: New study by Tsiodras – Lytras – Vaccination prevented almost 20,000 deaths

About 20,000 deaths from complications of Covid-19 were prevented by vaccination against the coronavirus infection, according to a new pre-published study by professors Sotiris Tsiodras and Theodoros Lytras, conducted during the period 11 January 2020 - 8 December 2021.

The study showed that the effectiveness of vaccines against severe disease and death is high and similar at all ages, with slightly lower in people over 80, while declining over time. However, the amount of damage is very small, as the effectiveness remains greater than 80% at 6 months from the 2nd dose and returns close to 100% with the 3rd dose.

The study

During the study, a total of 14,676,605 doses of vaccine were administered in Greece (11,427,784 BNT162b2 / Pfizer, 1,161,905 mRNA-1273 / Moderna, 1,505,334 ChAdOx1 nCoV-19 / AstraZeneca and 581,582 Ad26.COV2.S / ) in people aged 15 years and over and 9,100 intubations and 14,755 deaths were recorded, according to national health service EODY data.

"Vaccination reduces the risk of death from COVID19 so" dramatically "that by December 8 we estimate that it has prevented 19,691 deaths !! (95% CI 18,890-20,788). That is, we would expect so many "extra" deaths if we did not have the vaccination. In simple words, this emerges by comparing the age mortality of vaccinated and unvaccinated persons, and applying the latter to the entire population, "says Professor Theodoros Lytras in a post.

According to him, the study demonstrates the enormous protection offered by all vaccines and their ability to save numerous lives.

As he points out, there are unfortunately many vaccinated people who become seriously ill and die, but: (a) they are numerically much less (see table below) (b) the denominator (total number of...