Sex Transm Infect 78:i159-i163 doi:10.1136/sti.78.suppl_1.i159
  • Symposium

Risk network structure in the early epidemic phase of HIV transmission in Colorado Springs

  1. J J Potterat1,
  2. L Phillips-Plummer1,
  3. S Q Muth1,
  4. R B Rothenberg2,
  5. D E Woodhouse1,
  6. T S Maldonado-Long1,
  7. H P Zimmerman1,
  8. J B Muth1
  1. 1STD/HIV Program, El Paso County Department of Health and Environment, Colorado Springs, Colorado, USA
  2. 2Department of Family and Preventive Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
  1. Correspondence to:
 John J Potterat, STD/HIV Program, El Paso County Department of Health and Environment, 301 South Union Blvd, Colorado Springs, Colorado 80910, USA;
  • Accepted 6 December 2001


This study describes the risk network structure of persons with HIV infection during its early epidemic phase in Colorado Springs, USA, using analysis of community-wide HIV/AIDS contact tracing records (sexual and injecting drug partners) from 1985 to 1999. Paired partner information from other STD/HIV programme records was used to augment network connections. Analyses were conducted with and without this supplemental information. The results suggest that a combined dendritic and cyclic structural network pattern is associated with low to moderate HIV propagation in Colorado Springs, and may account for the absence of intense propagation of the virus.