[Tuberculosis among immigrants in Bilbao (Spain)].

Area of Science:

• Public Health
• Infectious Disease Epidemiology
• Immigration Health

Background:

• Tuberculosis (TB) remains a global health concern, particularly in high-prevalence countries.
• Immigrant populations often have unique health challenges, including infectious disease risks.
• Understanding TB prevalence in immigrant communities is vital for effective public health strategies.

Purpose of the Study:

• To determine the prevalence of tuberculosis (TB) and latent tuberculous infection among immigrants in Bilbao, Spain.
• To investigate the social and health conditions associated with TB risk in this population.
• To inform public health policies for immigrant screening and healthcare access.

Main Methods:

• A descriptive study conducted in Bilbao, Spain, over seven months.
• Recruitment of immigrant volunteers through social workers and a non-governmental organization (Médicos del Mundo).
• Data collection via questionnaires on social/medical conditions, supplemented by tuberculin skin tests and chest X-rays.

Main Results:

• 406 immigrants were initially evaluated, primarily from sub-Saharan Africa; 83.2% were undocumented.
• 306 participants (75.4%) completed the study, with higher compliance among those seeking medical certificates or reporting symptoms.
• Thirty-one subjects showed TB exposure, and 0.83% were diagnosed with active TB.

Conclusions:

• TB screening for recently arrived immigrants is essential due to high exposure and disease rates.
• Incentives and collaboration with non-governmental organizations can enhance program participation and compliance.
• Targeted screening programs are necessary to control TB transmission within vulnerable immigrant populations.