The latest study from the University of Geneva explored the BA.4/5 Omicron variant and its interaction with the immune system. Researchers found that the COVID-19 BA.4/5 mutation evades antibodies generated by earlier strain infections and vaccines.
How contagious a disease is, is measured by its basic reproduction number (R0).
The COVID-19 BA.4/5 mutation has an 18.6 RO, or is over 450% more infectious than the original Wuhan strain that only had an R0 of 3.3.
Interesting that even CNN admits the currently used C-19/22 Vaccine is no longer effective against NEW Covid-19/22+ strains. BUT being part of the MSM it has played the UBER-PRO-VAX positions from the start also.