California study finds that vaccinated individuals are more susceptible to COVID variant infections than unvaccinated.
In addition, the increase in the frequency of more antibody-resistant strains in the population correlates with the increase in the frequency of vaccination in the population.
https://www.medrxiv.org/content/10.1101/2021.08.19.21262139v1.full
Predominance of antibody-resistant SARS-CoV-2 variants in vaccine breakthrough cases from the San Francisco Bay Area, California | medRxiv
medRxiv - The Preprint Server for Health Sciences
https://www.medrxiv.org/content/10.1101/2021.08.19.21262139v1.full