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Mass. reports 13,919 new breakthrough cases, raising total to 2.3 percent of fully vaccinated people

Children received doses of the Pfizer COVID-19 vaccine at a Boston school.Suzanne Kreiter/Globe Staff

Massachusetts on Tuesday reported 13,919 more COVID-19 cases among fully vaccinated people since last week, bringing the total since the beginning of the vaccination campaign to 114,318 cases, or 2.3 percent of all fully vaccinated people.

The Department of Public Health also reported 85 more COVID-19 deaths among fully vaccinated people, bringing the total to 784 deaths among those fully vaccinated. The number of breakthrough deaths represents a tiny fraction of all vaccinated people and underscores the protection the vaccines provide against severe illness and death.

The deaths accounted for 0.06 percent of the 5,035,517 people in Massachusetts who were fully vaccinated, the department said in its weekly update on breakthrough COVID-19 metrics, which included data reported through Saturday.


The department also reported 220 more hospitalizations among fully vaccinated people, for a total of 3,186 hospitalizations. That represents 0.06 percent of all fully vaccinated people.

Last week, the state reported 11,431 new cases, 52 more deaths, and 250 more hospitalizations among fully vaccinated people.

State officials and public health experts have repeatedly stressed that vaccination greatly reduces hospitalization, severe illness, and death as a result of COVID-19. They have encouraged booster shots for fully vaccinated people as a way to shore up protection from the virus amid data that show immunity from the vaccines wanes over time.

As of Tuesday, 5,047,850 people in Massachusetts have been fully vaccinated, according to the department.

Christina Prignano can be reached at christina.prignano@globe.com. Follow her on Twitter @cprignano. Amanda Kaufman can be reached at amanda.kaufman@globe.com. Follow her on Twitter @amandakauf1.