Abstrakt
The letter by Llibre et al states that our study lacks a comparison between individual vaccines, so the authors present their own research on this topic, showing superiority of messenger RNA vaccines over adenovirus-based vaccines. We did perform vaccine-specific analyses (see Supplementary Material 2, Sections 11-14) [1], which roughly agree with the findings by Llibre et al; however, due to space limitations, we only briefly mentioned them in the main text.
We also refer interested readers to our previous (preprint) study [1], which analyzes differences in the protection against the Delta variant among individual vaccines in more detail and which has been recently accepted for publication.