Of course it is! Anyone who worked in healthcare or an institutional setting during the mass vaxxings can tell you that. My father’s home health aide who worked in a nursing home until she got fired for refusing the vax said that there were very few Covid cases before they started vaccinating everyone, both patients and staff. Their Covid cases were confined to one floor of one wing with very little spread throughout the facility. But once nearly everyone was jabbed, the entire facility was repeatedly locked down with many patient deaths and a few staff dying as well. At one point, the county board of health ordered a third of the patients sent to other facilities because they were so short-handed as to endanger patients’ lives. The “fully vaccinated” staff repeatedly tested positive. Whether symptomatic or not, they were ordered to quarantine for 14 days and test negative before being allowed back to work.
Several people I know (or knew, because they died of Covid despite being vaccinated 😪) who were teachers, to this day, required to be fully vaxxed, reported the same thing until the schools basically gave up and went to all remote for nearly two school years.