[Clinical and epidemiological changes in tuberculosis in children in the last 5 decades(1950-2000) ]

Area of Science:

• Pediatrics
• Infectious Diseases
• Epidemiology

Context:

• Tuberculosis (TB) poses a significant global health challenge, particularly in pediatric populations.
• Longitudinal data on pediatric TB clinical forms and incidence trends are crucial for public health planning.
• Understanding historical TB trends informs current prevention and treatment strategies.

Purpose:

• To analyze the incidence of various clinical forms of childhood tuberculosis (TB) over a 48-year period (1953-2000).
• To identify trends and changes in pediatric TB presentation and outcomes.
• To correlate observed epidemiological shifts with public health interventions.

Summary:

• This study analyzed pediatric TB (ages 0-8) incidence from 1953-2000, examining primary complex, pleuro-pulmonary, bronchial, extra-respiratory forms, and sequelae.
• Results indicate a marked decrease in overall pediatric TB incidence and the disappearance of chronic extensive forms and major sequelae.
• Notable declines occurred in 1964-65 and 1974, followed by a gradual decrease, while multiple sequelae calcifications increased after 1980.

Impact:

• The findings highlight the effectiveness of public health interventions like improved TB treatment and BCG vaccination campaigns in reducing pediatric TB burden.
• The study underscores the dynamic nature of TB epidemiology and the need for continued surveillance.
• Observed changes in TB sequelae incidence may necessitate adjustments in long-term follow-up protocols for pediatric TB survivors.