Vaccinations are routine in the U.S. military. New recruits, both the enlisted and the officers, are vaccinated against various diseases during their time in basic training or officer accession training.
Along with vaccinations given in training, other vaccinations and/or “booster shots” are given at various times while in the service. Some are given only to certain designated personnel, or for soldiers on assignment/deployment to various locations around the World.
The military’s high-speed “jet guns” of the past were developed for mass vaccination programs, but had features that led to inherent delivery problems, ranging from skin laceration to cross-contamination with blood-borne pathogens between patients. Such “multi-use nozzle jet injectors” or MUNJIs as they were known, were eventually banned in 1997*.
The PharmaJet needle-free technology is a compact, spring-powered injection system. It delivers the liquid medication or vaccine by means of a narrow, high-velocity fluid jet, which penetrates the skin in less than half a second. This combination results in a gentle injection experience compared to prior injectors and in fact to needle-bearing syringes themselves.
*Defense Logistics Agency; DPSC-M; December 9, 1997.