OKINAWA, Japan (Jan. 24, 2022) Gabby Blazek, a laboratory technician with the Naval Medical Research Center Silver Spring, processes laboratory specimens on Camp Foster, Okinawa, Japan, Jan. 24, 2022. The COVID-19 Health Action Response for Marines study was founded in May 2020 to assist the Marine Corps manage the COVID-19 outbreaks at the recruit depots and to monitor the health of recruits who tested positive for the virus. The second iteration of the study was launched soon after, and deployed to over 15 bases around the U.S. and in Okinawa to follow up and monitor the long-term effects those recruits, now Marines, may be experiencing. (U.S. Marine Corps photo by Lance Cpl. Alex Fairchild)