Tech. Sgt. Jonathon Zgainer, (left), aerospace medical technician, 155th Medical Group, administers a COVID-19 vaccine dose to Army Lt. Col. Robert Kadavy, director of aviation and safety, Jan. 21, 2021, at the medical detachment on the Nebraska National Guard air base in Lincoln. The Department of Defense COVID-19 vaccine roll-out plan is a standardized and coordinated strategy for prioritizing, distributing and administering COVID-19 vaccines to protect service members, maintain readiness and support the national COVID-19 response. (Nebraska

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