Where is this data from? Can you cite your source from a credible site not named twitter.
For example here is something from the CDC itself.
Do Delta ‘breakthroughs’ really mean vaccine protection is waning, and are boosters the answer?
By
Gretchen VogelAug. 20, 2021 , 6:05 PM
Even as the United States made the controversial announcement this week that it would begin to offer COVID-19 vaccine booster shots in September, scientists and public officials were scrambling to assess the rationale officials offered: that the vaccines’ protection against the Delta variant of SARS-CoV-2 is waning.
As vaccines rolled out early this year, the pandemic coronavirus seemed to almost magically melt away in some countries. But now, as Delta infections surge in highly vaccinated countries that once seemed to have COVID-19 on the run,
including Israel and the United Kingdom, many fully vaccinated people are wondering how protected they really are. Although most data still show the vaccines are very effective at preventing severe disease and death, the initial hopes that they could also squelch transmission and completely prevent “breakthrough” infections in vaccinated people have evaporated. What is uncertain is how much the trends reflect a possible decline in vaccine-induced immunity versus the extraordinarily infectious nature of the Delta variant, and whether widespread use of boosters is now warranted.
Below we address some of the key vaccine questions at this new Delta-dominated stage of the pandemic.