U.S. Air Force Brig. Gen. William Holt, special assistant to the commander of Air Force Special Operations Command, taxis a U-28A Draco down the Hurlburt Field flightline during his “Fini” flight at Hurlburt Field, Florida, July 19, 2019. Holt has flown the U-28A for 12 years and has accrued approximately 700 flight hours in his 28 years of service in Air Force. (U.S. Air Force photo by Senior Airman Dennis Spain)

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DOD experts explain: The science behind the COVID-19 vaccines

Letzibeth Mendez-Rivera a Lab Manager with The Emerging Infectious Disease Branch (EIDB), at the Walter Reed Army Institute of Research (WRAIR), studies Coronavirus protein samples, June 1, 2020. The EIDB is part of WRAIR's effort to produce a COVID-19 vaccine candidate. (U.S. Army photo by Mike Walters/ Released)

PHOTO BY: Mike Walters
VIRIN: 210203-F-VG623-001.JPG
FULL SIZE: 3.43 MB
Additional Details

CAMERA

Canon EOS 5D Mark IV

LENS

EF24-105mm f/4L IS USM

APERTURE

4

SHUTTERSPEED

1/200

ISO

640

IMAGE IS PUBLIC DOMAIN

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