Comment by Brybry

This preprint also shows reduced antibody neutralization of omicron in comparison to delta (including for double vaccinated + previous infection).

Note the sample sizes for all these studies is small. 12 participants for the AHRI paper and 8 to 20 per group for this one.

https://www.medrxiv.org/content/10.1101/2021.12.07.21267432v...