Active contact tracing beyond the household in multidrug resistant tuberculosis in Vietnam: a cohort study.

ABSTRACT:

Background

Currently in Vietnam contact tracing for multidrug-resistant tuberculosis (MDR-TB) entails passive case finding among symptomatic household contacts who present themselves for diagnosis. Close contacts of MDR-TB cases are therefore not identified adequately. We assessed the added value of active contact tracing within and beyond households using social network questionnaires to identify close contacts of MDR-TB patients in Vietnam.

Methods

We conducted a cohort study using social network questionnaires in which contacts were identified by MDR-TB patients, including contacts from 'high risk' places like work. Contacts of MDR-TB patients were followed up and screened over a period of at least 6 months. This included two active screenings and any unscheduled passive

SUBMITTER: Hoang TTT 

PROVIDER: S-EPMC6394002 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature