Airman 1st Class Kimber Bernau, 59th Medical Wing Family Emergency Clinic medical technician, administers the San Antonio Military Health System’s first Pfizer COVID-19 vaccine shot to Maj. Andrew Gausepohl, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense is conducting a coordinated vaccine distribution strategy for prioritizing and administering COVID-19 vaccines. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Airman 1st Class Kimber Bernau, 59th Medical Wing Family Emergency Clinic medical technician, administers the Pfizer COVID-19 vaccine shot to Mr. Richard Carvajal, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense is conducting a coordinated vaccine distribution strategy that will strengthen the ability to protect people, maintain readiness, support the national COVID-19 response, and trust in safe and effective vaccines and a vaccination plan. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Senior Airman Alexander Mincey, 59th Medical Wing Immunizations Clinic technician, administers the Pfizer COVID-19 vaccine shot to Master Sgt. Vangie Moore, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense prioritization will be derived from the data-driven, national prioritization to help ensure fair and equitable access to everyone. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Airman 1st Class Kimber Bernau, 59th Medical Wing Family Emergency Clinic medical technician, administers the Pfizer COVID-19 vaccine shot to Tech Sgt. Jason Bailey, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense is implementing a standardized and coordinated strategy for prioritizing, distributing, and administering the COVID-19 vaccine through a phased approach to all Active Duty, Reserve, National Guard, and all mission-essential DoD civilian employees and other personnel. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Robert Carpenter, 59th Medical Wing Immunizations Clinic licensed vocational nurse, dilutes the San Antonio Military Health System’s first Pfizer COVID-19 vaccine with saline solution, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense remains committed to protecting service members, civilian employees, and families while safeguarding national security capabilities and supporting the whole-of-nation response to the pandemic. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Robert Carpenter, 59th Medical Wing Immunizations Clinic licensed vocational nurse, prepares the San Antonio Military Health System’s first Pfizer COVID-19 vaccine, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. Vaccines fight disease by producing an immune response within the body. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Airman 1st Class Raymond De Jesus, 59th Medical Wing medical logistics technician, transports the San Antonio Military Health System’s first Pfizer COVID-19 vaccine shipment to the freezer room, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The U.S. Food and Drug Administration authorize the use of a vaccine after careful and rigorous testing and trials for safety and effectiveness. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Airman 1st Class Raymond De Jesus, 59th Medical Wing medical logistics technician, and Staff Sgt. Romina Guridi, 59th MDW medical logistics warehouse supervisor, open the San Antonio Military Health System’s first Pfizer COVID-19 vaccine shipment, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense aims to be able to reduce the burden of the COVID-19 disease in high-risk populations and simultaneously mitigate risk to military operations. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Airman 1st Class Raymond De Jesus, 59th Medical Wing medical logistics technician, and Staff Sgt. Romina Guridi, 59th MDW medical logistics warehouse supervisor, pull out the first five cases of the San Antonio Military Health System’s Pfizer COVID-19 vaccine shipment, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense prioritization will be derived from the data-driven, national prioritization to help ensure fair and equitable access to everyone. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Staff Sgt. Romina Guridi, 59th Medical Wing medical logistics warehouse supervisor, checks a case of the San Antonio Military Health System’s first Pfizer COVID-19 vaccine shipment, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense is conducting a coordinated vaccine distribution strategy that will strengthen the ability to protect people, maintain readiness, support the national COVID-19 response, and trust in safe and effective vaccines and a vaccination plan. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)

Airman 1st Class Raymond De Jesus, 59th Medical Wing medical logistics technician, and Staff Sgt. Romina Guridi, 59 MDW medical logistics warehouse supervisor, place the San Antonio Military Health System’s first cases of the Pfizer COVID-19 vaccine into a subzero freezer, Dec. 14, 2020, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense is implementing a standardized and coordinated strategy for prioritizing, distributing, and administering the COVID-19 vaccine through a phased approach to all Active Duty, Reserve, National Guard, and all mission-essential DoD civilian employees and other personnel. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)