OKLAHOMA CITY (AP) — Coronavirus vaccinations have helped reduce COVID-19 infections by 7,500 and deaths by 1,100 among Oklahomans aged 65 and older, according to a study released Tuesday by the U.S. Department of Health and Human Services.

The study of Medicare recipients found that as vaccinations increased from January, when the vaccines became more widely available, through May, each 10% increase in vaccination rates resulted in an 11-12% decline in weekly COVID-19 hospitalizations and deaths among Medicare beneficiaries.

In its weekly report on Sept. 29, 91.1% of Oklahomans 65 or older ha...