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Cleveland Clinic releases new COVID breakthrough data: 15% of new cases in September were breakthrough infections

The state of Ohio reports 1,133 total breakthrough hospitalizations since Jan. 1.

CLEVELAND — Editor's note: Video at the top of this story was originally posted in an unrelated COVID-19 article on Oct. 8, 2021.

The Cleveland Clinic says 15 percent of all new COVID cases they saw in September were breakthrough infections – meaning those who tested positive were fully vaccinated.

“While no vaccine is 100 percent effective and we expect to see some breakthrough cases, the far majority of new cases we are seeing are still occurring in those who are unvaccinated,” Cleveland Clinic officials said in an e-mail Thursday morning.

RELATED: Ohio launches COVID variant dashboard

The Cleveland Clinic stressed Thursday that this data shows the vast majority of new cases remains in those who are unvaccinated.

“In addition, 90 percent of our hospitalizations were in unvaccinated individuals," according to Cleveland Clinic officials. "Those who were vaccinated and ended up hospitalized were largely patients who were over the age of 65 or had significant underlying medical conditions.”

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The Cleveland Clinic also said that 90 percent of the patients who were admitted to the hospital for COVID-19 in August were unvaccinated.

Ohio’s breakthrough dashboard, which reports data back to Jan. 1, reports the following (last update provided Oct. 6):

  • COVID-19 hospitalizations for those NOT fully vaccinated: 29,357
  • Breakthrough hospitalizations: 1,133
  • COVID-19 deaths among those NOT fully vaccinated: 8,683
  • Breakthrough deaths: 186

RELATED: 'For those who have been vaccinated, thank you!': Cuyahoga County Board of Health holds COVID-19 briefing