Tuberculosis in HIV-infected infants, children, and adolescents in Latin America

Area of Science:

• Pediatric infectious diseases
• Global health epidemiology
• HIV/AIDS research

Background:

• Tuberculosis (TB) and Human Immunodeficiency Virus (HIV) co-infection pose significant challenges, particularly in pediatric populations.
• Latin America faces a dual burden of TB and HIV, necessitating focused research on affected children.
• Understanding the clinical spectrum and diagnostic challenges of TB in HIV-infected children is crucial for effective management.

Purpose of the Study:

• To investigate the incidence, clinical features, and diagnostic approaches for tuberculosis in a cohort of HIV-infected children and adolescents in Latin America.
• To identify key factors influencing TB diagnosis and management in this vulnerable population.
• To inform public health strategies for TB/HIV control in pediatric populations.

Main Methods:

• Retrospective analysis of a prospective observational cohort study involving HIV-infected children with tuberculosis.
• Inclusion criteria focused on confirmed or presumed tuberculosis cases within the cohort.
• Data collection spanned from 2002 to 2011 across multiple clinical sites in Latin America.

Main Results:

• Sixty-nine HIV-infected children were included, with 52.2% having laboratory-confirmed tuberculosis.
• A significant proportion (31.9%) had presumed tuberculosis, indicating diagnostic challenges.
• Many cases involved perinatal HIV infection, and a history of contact with adult TB cases was common, though often incomplete.
• Immune reconstitution inflammatory syndrome (IRIS) was suspected in 16 cases.

Conclusions:

• Effective contact tracing of adult tuberculosis cases is vital.
• Screening for HIV in children with TB, and TB in children with HIV, is essential in Latin America.
• Preventive measures for tuberculosis-exposed, HIV-infected children require enhancement.