Pre-sensitization with tuberculosis and non-tuberculosis mycobacteria and its impact on TB incidence in different age groups: Chengalpattu BCG trial revisited.

Individuals pre-sensitized with Mycobacterium tuberculosis (MTB), non-tuberculosis mycobacteria, and its impact on TB incidence are relatively unexplored in a high TB burden setting. We conducted secondary data analysis of a double-blind, randomized Chengalpattu BCG trial, India. Induration to Purified Protein Derivative (PPD)-S and PPD-B were proxies for exposures to MTB and M.

A profile of bacteriologically confirmed pulmonary tuberculosis in children.

Objective: To describe the clinical profile of children with bacteriologically confirmed tuberculosis.

Study Design: A multicentric study was conducted in three hospitals in Chennai city between July 1995 and December 1997. Children aged 6 months to 12 years with signs and symptoms suggestive of tuberculosis were investigated further.

Mortality after admission in the pediatric emergency department: a prospective study from a referral children's hospital in southern India.

Objective: Data on outcomes after admission in pediatric emergency departments are sparse in India. Our objectives were to determine the clinical and epidemiologic profile of acutely ill children and to identify risk factors for mortality.

Design: Prospective, longitudinal study, conducted in 1999.

Survey for tuberculosis in a tribal population in North Arcot District.

Setting: Tribal villages in the jungles of the Jawadhu hills, South India.

Objective: To estimate the prevalence of tuberculosis (TB) infection and disease in a remote tribal population.

Design: A cross-sectional survey with two-stage screening for identification of cases.