Very briefly--lots more at the link:
A total of 10,262 SARS-CoV-2 vaccine 'breakthrough infections' – defined as coronavirus infections in fully vaccinated people – were reported to the CDC from 46 U.S. states and territories between January 1 and April 30, 2021.
June 7, 2021 (LifeSiteNews) – Deaths and hospitalizations for COVID-19 infection have tripled among the fully vaccinated in the U.S. in the past month.
Deaths from COVID in those who have been fully vaccinated against the disease increased from 160 as of April 30 to 535 as of June 1, according to data from the Centers for Disease Control and Prevention (CDC).
CDC no longer counting post-vaccine cases
“Despite the high level of vaccine efficacy, a small percentage of fully vaccinated persons (i.e. received all recommended doses of an FDA-authorized COVID-19 vaccine) will develop symptomatic or asymptomatic infections with SARS-CoV-2, the virus that causes COVID-19,” the CDC said in May.
The health oversight agency added that it would only be counting COVID-19 cases and infections after vaccination that resulted in patients being hospitalized or dying from May 1 onward – discounting almost 90% of cases of vaccine failure.
The policy leaves a gaping hole in data collection on vaccine effectiveness. What’s more, since only 27% of the reported cases were asymptomatic, it also leaves a bulk of vaccinated people who are symptomatic – more than 60% of reported cases are actually ill with COVID symptoms – who are perhaps unwittingly spreading the disease because they do not suspect themselves of having a COVID infection because they have received their shots. But the CDC is no longer counting them.
The CDC did not respond to questions about how discounting the majority COVID breakthrough infections might affect analysis of data efficacy.
Given that the CDC definition of “breakthrough infection” is in “fully vaccinated” individuals, the agency is also discounting cases of COVID infection among those who have only received one dose of vaccine in its statistics.
Of course the big question is, are these cases true "breakthrough" cases or are they cases involving antibody-dependent enhancement (ADE)?