Special report: Prevalence of selected underlying health conditions among active component Army service members with coronavirus disease 2019, 11 February-6 April 2020

The novel coronavirus (severe acute respiratory syndrome coronavirus 2, or SARS-CoV-2) that causes coronavirus disease 2019 (COVID-19) is exhibiting widespread community transmission throughout most of the world Previous reports have evaluated the risk of serious illness in civilians diagnosed with COVID-19;however, similar reports have not been compiled for the Army active component (AC) population COVID-19 has been a reportable condition for the Department of Defense since 5 February 2020, and, as of the morning of 6 April, a total of 873 cases were reported to the Disease Reporting System internet from Army installations Of these cases, a total of 219 (25 1%) were identified as Army AC service members The majority of these cases did not require hospitalization (n=207;94 5%) The most common comorbidities present in nonhospitalized cases included other chronic illnesses (43 5%), neurologic disorders (24 6%), and obesity (21 7%) Overall, 12 cases (5 5%) required hospitalization Hospitalized cases had a history of obesity (58 3%), neurologic disorder (50 0%), other chronic illnesses (41 7%), and hypertension (25 0%) No comorbidities were present among 27 1% (n=56) of nonhospitalized cases and 25 0% (n=3) of hospitalized cases