Related Experiment Video
Updated: Jun 24, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
Published on: September 5, 2017
[Infantile tuberculosis--to be considered again]
Pia Toikka1, Merja Helminen, Iiris Rajalahti
1TAYS:n lastenklinikka, PL 2000, 33521 Tampere.
Insights
Finland stopped routine BCG newborn vaccination in 2006. A six-month-old infant developed tuberculosis despite not being in a risk group, highlighting potential gaps in targeted vaccination strategies.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Finland transitioned from universal newborn Bacillus Calmette-Guérin (BCG) vaccination to a targeted approach in August 2006.
- The current strategy prioritizes BCG vaccination for children identified as having an increased risk of tuberculosis (TB) exposure.
Observation:
- A six-month-old Finnish infant was diagnosed with pulmonary tuberculosis.
- The infant did not belong to any recognized risk group and had not received the BCG vaccine as a newborn.
Findings:
- Despite extensive investigations, the source of the infant's tuberculosis infection could not be identified.
- This case represents a potential gap in the current targeted BCG vaccination policy.
Implications:
- The findings suggest that targeted BCG vaccination may not fully capture all infants at risk for TB.
- Further evaluation of TB transmission dynamics in young children and the effectiveness of current risk stratification is warranted.
- This case underscores the importance of considering TB in unvaccinated infants, even in low-prevalence settings.
Abstract:
Administration of the BCG vaccine to all newborns was discontinued in Finland by the end of August 2006. Since then the vaccination has been given targetedly to children having an increased risk of contracting tuberculosis. We describe a child of six months and Finnish origin with diagnosed pulmonary tuberculosis. The child did not belong to any risk group and thus did not receive BCG vaccination as a newborn. Extensive investigations failed to reveal the source of infection.
Related Concept Videos
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Tuberculosis
Pulmonary Tuberculosis V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...