The following article is reproduced with the permission of The Hatchard Report.
An article “Effectiveness of the Coronavirus Disease 2019 Bivalent Vaccine” has been published in the journal Open Forum of Infectious Diseases in their June 2023 issue. The study of 51,107 healthcare employees found that the bivalent vaccine was only a miserly 29% effective against the BA4/5 Covid variant which was in any case superseded by the BQ variant after which vaccine effectiveness dropped to 20%, and then, when the XBB variant began to dominate, effectiveness fell to zero. Yes zero, but not actually nothing; incredibly, repeated vaccination makes things worse.