Found one source:
https://www.naturalnews.com/2021-04-22-60-percent-covid19-cases-already-vaccinated.html
Good source...Dr. Harvey Risch, a professor of epidemiology at Yale University, has calculated that upwards of 60 percent of all new “cases” of the Wuhan coronavirus (Covid-19) are occurring in people who were already “vaccinated” for the disease.
ThankQ.