The 130th Annual Meeting of APHA

4030.0: Tuesday, November 12, 2002 - 8:55 AM

Abstract #51906

A Preventable Outbreak of Tuberculosis Investigated Through an Intricate Social Network

Lisa K. Fitzpatrick, MD, Division of Applied Public Health Training, Centers for Disease Control and Prevention, Epidemiology Program Office, 19 Warren Hall, Mailstop D-18, Berkeley, CA 94720, 510-469-6353, lff5@cdc.gov

Background: In 1998, a city in Indiana reported 4-fold increase in the number of cases of tuberculosis (TB). Methods: An investigation to assess the increase in cases and to identify possible epidemiologic links among person with TB identified 41 cases of active TB. Results: Epidemiologic links and/or matching DNA fingerprints were identified for 31 patients (76%). The majority of these patients were members of a single social network within the community. Links for most of these patients were identified after multiple interviews with patients and their contacts. TB control activities in the country were limited prior to the identification of the outbreak. Discussion: At least 24 cases may have been preventable. This outbreak may have been prevented with prompt case identification and effective contact tracing and screening furing the years before the outbreak. The use of social networks should be considered in the investigation of outbreaks that involve difficult-to-reach populations. TB control measures should be maintained in areas with historically low TB incidence.

Learning Objectives:

Presenting author's disclosure statement:
I do not have any significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.

Social Networks and Alternative Approaches to TB Contact Investigations

The 130th Annual Meeting of APHA