Skin and soft tissue infections, active component, U.S. Armed Forces, January 2016-September 2020

During 1 January 2016-30 September 2020, there were 210,914 incident cases of skin and soft tissue infections (SSTIs) among active component U.S. military members, corresponding to a crude overall incidence rate of 352.8 per 10,000 person-years (p-yrs). An additional 4,250 cases occurred in theaters of operations (251.0 per 10,000 p-yrs). Of the total incident SSTI diagnoses, 64.5% were classified as cellulitis/abscess, 30.0% were "other SSTIs" (e.g., folliculitis, impetigo), 5.3% were carbuncles/furuncles, and 0.2% were erysipelas. Crude annual incidence rates declined by 21.9% over the surveillance period. In general, higher rates of SSTIs were associated with younger age, recruit/trainee status, and junior enlisted rank. A total of 174,893 service members were treated for SSTIs, which accounted for 307,160 medical encounters and 14,819 hospital bed days. SSTIs in the military are associated with significant operational and health care burden. Strategies for the prevention, early diagnosis, and definitive treatment of SSTIs are warranted, particularly in initial military training and operational settings associated with increased risk of infection.