title: Association between barracks type and acute respiratory infection in a gender integrated Army basic combat training population.
abstract: BACKGROUND
  Acute respiratory infections (ARIs) are the leading cause of acute morbidity and lost work time in the United States. Few studies have looked at building design and transmission of ARIs.
  
  
  OBJECTIVE
  This study explores the association of ventilation design, room occupancy numbers, and training week with ARI rates in Army Basic Combat Training barracks.
  
  
  METHODS
  This observational study captured the overall incidence of ARI in a cohort of 16,258 individuals attending basic combat training at Fort Jackson, South Carolina.
  
  
  RESULTS
  ARI risk was higher among trainees living in the 60-person room barracks compared with those living in 8-person rooms, which increased rapidly for the first few weeks of training and then declined to baseline.
  
  
  CONCLUSIONS
  Findings support direct contact as primary ARI transmission mode in this study population based on observed lower ARI risk in smaller room barracks and similar risk in large room barracks despite heating, ventilation, and air conditioning system variability.
authors: Division of Occupational and Environmental Science, Department of Preventive Medicine and Biometrics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814-4799, USA.
authors: Duvel W
authors: DW
authors: White
authors: Charles E
authors: CE
authors: Feigley
authors: Robert E
authors: RE
authors: McKeown
authors: Joseph J
authors: JJ
authors: Hout
authors: James R
authors: JR
authors: Hebert
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D005260:Female; D006361:Heating; D006801:Humans; D008297:Male; D058749:Military Facilities; D008889:Military Personnel; D012141:Respiratory Tract Infections / Q000453:epidemiology* / Q000635:transmission*; D014691:Ventilation; D055815:Young Adult