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Marine Corps Staff Sgt. Ryan Mathis, an information security technician with Marine Rotational Force - Darwin, poses for a photo at Okinawa Naval Hospital, Camp Foster, Okinawa, Japan, March 1, 2021. Mathis attended a COVID-19 vaccination event to receive the second round of the Moderna COVID-19 vaccine after opting in for the first round in preparation to depart to Australia with MRF-D rotational deployment.
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