Each of the older buildings has 20 dormitories, and each dormitory accommodates one flight of up to 60 trainees in two large sleeping bays (Figure); a flight is the smallest organizational unit in the U.S.
The walls allow for conversations between employees while still ensuring that each individual has enough privacy to get their work done. Fissures in walls or between floor materials were caulked or covered with foam and sealed with metal tape. Air vents were covered with a fine wire mesh, fastened with sheet metal, and sealed with metal tape.
Monica Selent, DVM, William Reeves, PhD, US Air Force School of Aerospace Medicine. Amy Costello, MD, Catherine Witkop, MD, US Air Force Medical Support Agency. 1Trainee Health Surveillance, 559 MDOS, Joint Base San Antonio (JBSA)-Lackland; 2Aerospace Medicine Department, 559 AMDS, JBSA-Lackland; 3Public Health Department, 559 AMDS, JBSA-Lackland; 4San Antonio Military Medical Center, JBSA-Fort Sam Houston. This investigation benefited from early and consistent collaboration with logistics, civil engineering, and training leadership staff members, and from consultation with various military and civilian experts.

This is the largest military investigation of rabies exposure, both in terms of the number of persons interviewed for potential exposure (922) and the number who received rabies PEP (200), with an associated cost of approximately $400,000.