BOSTON (WHDH) - The Massachusetts Department of Public Health on Tuesday reported 4,034 new breakthrough COVID-19 cases and 45 additional deaths among fully vaccinated residents.

As of Oct. 9, there have been 44,498 total breakthrough cases, up from the 40,464 cases that were reported on Oct. 2, new data shows.

There have also been 345 fully vaccinated residents who have died from COVID-19, up from the 300 deaths that were reported last week.

Health officials also reported 148 new hospitalizations among fully vaccinated residents, bringing the total number to 1,428, up from a previous mark of 1,280.

Data obtained over the summer showed that nearly three-quarters of COVID-19 breakthrough deaths in Massachusetts have been among vaccinated residents with at least one underlying condition and their average age was 82.5.

Massachusetts’ high vaccination rate among people over the age of 18 has been critical in keeping hospitalization numbers low, despite the ongoing surge in case counts, officials said.

The number of fully vaccinated people across the state currently sits at 4,667,841, public health data shows.

A total of 200,965 doses of the COVID-19 booster shot have also been administered.

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