Joint service members participated in a hands-on medical training, observing and documenting calibration for and testing of pH, Turbidity using water quality testing equipment and standards at Joint Base San Antonio-Fort Sam Houston, Texas on May 11, 2026. The training enhanced Service Members’ technical knowledge and reinforced readiness through collaborative learning and practical application. (U.S. Air Force photo by Zelideth Rodriguez)

Army and Navy students in the Preventive Medicine Technician course practice testing pH and turbidity using water quality testing equipment and standards at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas on May 11, 2026. The training enhances students’ technical knowledge and reinforces readiness through collaborative learning and practical application. (U.S. Air Force photo by Zelideth Rodriguez)

U.S. Army Staff Sgt. Keith Rainey Jr., an instructor for the Preventive Medicine Technician course, instructs Army and Navy students on water quality testing procedures and analysis at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas, May 11, 2026. The training familiarized service members with equipment handling procedures and strengthened operational readiness. (U.S. Air Force photo by Zelideth Rodriguez)

U.S. Army Staff Sgt. Keith Rainey Jr., an instructor for the Preventive Medicine Technician course, instructs students on water quality testing procedures and analysis at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas, May 11, 2026. The training familiarizes service members with equipment handling procedures and strengthens operational readiness. (U.S. Air Force photo by Zelideth Rodriguez)

U.S. Army Soldiers (from front to back) Pfc. Alexander Escobedo, Pvt. Asia Casey, and Spc. Shaun Wilder, participate in hands-on air quality sampling training using Deployable Particular Sampling in the Preventive Medicine Technician course at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas, May 11, 2026. Students were provided with instruction on air monitoring equipment and contamination testing procedure during the environmental health training session. (U.S. Air Force photo by Zelideth Rodriguez)

U.S. Army Soldiers Pfc. Sasha Pierce, left, and Spc. Vladimir Hino, students in the Preventive Medicine Specialist course, participate in hands-on air quality sampling training at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas, May 11, 2026. Air sampling procedures and testing methods were demonstrated during the environmental health training session. (U.S. Air Force photo by Zelideth Rodriguez)

U.S. Army Spc. Cesar Dones, left, and U.S. Navy Hospital Corpsman 1st Class Tavaris Motes, students in the Preventive Medicine Technician course, perform air sampling using Deployable Particular Sampling device during the environmental health training session at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas, May 11, 2026. The training strengthens interoperability and familiarizes students with environmental sampling equipment handling and operational procedures. (U.S. Air Force photo by Zelideth Rodriguez)

U.S. Navy Petty Officer 1st Class Tavaris Motes, a student in the Preventive Medicine Technician course , performs air sampling using a Deployable Particular Sampling device during the environmental health training session at the Medical Education and Training Campus on Joint Base San Antonio-Fort Sam Houston, Texas, May 11, 2026. The training strengthens interoperability and familiarizes students with environmental sampling equipment handling and operational procedures. (U.S. Air Force photo by Zelideth Rodriguez)