Related Experiment Video
Updated: Aug 5, 2026

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients
Published on: October 25, 2024
Prevalence of latent tuberculosis infection among prison officers in Paraná, Brazil: a longitudinal study
Kristiana Giacomini1, Carlos Eduardo de-Souza-Matos1, Matheus Arengheri-Vicente2
1Western Paraná State University - UNIOESTE Francisco BeltrãoParaná Brazil.
Objectives:
To evaluate the baseline prevalence of latent tuberculosis infection (LTBI) and longitudinal changes in interferon-gamma release assay (IGRA) positivity among male and female prison officers in Paraná, Brazil.
Material And Method:
A longitudinal study was conducted with prison officers in direct contact with inmates. LTBI was diagnosed using the QuantiFERON-TB® Gold Plus (IGRA) test.
Results:
The proportion of IGRA-positive individuals decreased from 22.6% in 2022 to 5.7% in 2024. However, increases were observed in cigarette consumption, alcohol use, and daily consumption of medications.
Discussion:
The findings highlight the importance of periodic monitoring of latent tuberculosis infection and strengthening occupational health promotion strategies for prison officers.
Related Concept Videos
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 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...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
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
