Navy Petty Officer 2nd Class Benjamin Noriega, a field medical technician with Marine Rotational Force - Darwin, administers an influenza vaccine to Marine Corps Master Sgt. Sarah Nadeau, the communication strategy and operations chief with MRF-D, at Larrakeyah Barracks, Darwin, NT, Australia, July 12, 2021. COVID-19 and influenza vaccines were transported to Larrakeyah and Robertson Barracks medical facilities to vaccinate U.S. service members in Australia’s Top End.