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Tuberculous infection in Saharia, a primitive tribal community of Central India

V G Rao1, P G Gopi, R Yadav

  • 1Regional Medical Research Centre for Tribals, Indian Council of Medical Research, Nagpur Road, P.O. Garha, Jabalpur 482 003, India. drvgrao@rediffmail.com

Transactions of the Royal Society of Tropical Medicine and Hygiene
|July 18, 2008
PubMed

Insights

Tuberculous infection is highly prevalent among Saharia children in India, with a high annual risk of tuberculosis infection (ARTI). Urgent, intensified tuberculosis control measures are needed for this vulnerable ethnic group.

Area of Science:

  • Public Health
  • Epidemiology
  • Infectious Diseases

Background:

  • Tuberculosis remains a significant global health challenge, particularly in resource-limited settings.
  • Primitive ethnic groups often face unique vulnerabilities and health disparities.
  • Understanding tuberculosis infection dynamics in such populations is crucial for effective control.

Purpose of the Study:

  • To estimate the prevalence of tuberculous infection in Saharia children.
  • To determine the annual risk of tuberculosis infection (ARTI) in this population.
  • To inform targeted tuberculosis control strategies for primitive ethnic groups.

Main Methods:

  • A cross-sectional tuberculin survey was conducted among 1341 Saharia children aged 1-9 years.
  • Tuberculin testing was performed using 1 TU of PPD RT 23, with reactions read after 72 hours.
  • Data analysis included assessing BCG scar status and reaction size distribution.

Main Results:

  • The prevalence of tuberculous infection was estimated at 20.4% (95% CI 18.2-22.5%).
  • The annual risk of tuberculosis infection (ARTI) was found to be 3.9% (95% CI 3.5-4.3%).
  • Prevalence and ARTI remained high regardless of BCG scar status.

Conclusions:

  • The Saharia ethnic group exhibits a high prevalence of tuberculous infection and ARTI.
  • There is an urgent need to intensify tuberculosis control measures in this population.
  • Sustained, long-term interventions are essential for effective tuberculosis management.

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