Betel Quid Use and Tuberculosis Transmission: A Neglected Focus Area for Tuberculosis Control in Low- and...

Area of Science:

• Public Health
• Infectious Disease Epidemiology
• Behavioral Science

Background:

• Betel quid consumption is a carcinogen with high prevalence in tuberculosis patients.
• A significant knowledge gap exists regarding the link between betel quid use and tuberculosis (TB) transmission.
• This gap represents a missed opportunity to reduce the global TB burden in low- and middle-income countries.

Purpose of the Study:

• To present empirical evidence on betel quid use and its impact on TB spread.
• To identify actionable strategies for controlling TB transmission among betel quid users.
• To highlight the importance of addressing this knowledge gap in research, policy, and community interventions.

Main Methods:

• Review of existing literature and empirical evidence on betel quid consumption and TB.
• Analysis of transmission dynamics influenced by betel quid use behaviors (spitting, social contact).
• Identification of multi-level interventions including research, communication, legislation, and community strategies.

Main Results:

• Habitual betel quid consumption and spitting directly facilitate TB transmission through pathogen exposure and social contact.
• Immunosuppression associated with betel quid use may increase TB susceptibility and progression.
• The relationship between betel quid use and TB is a critical, yet neglected, factor in global TB control.

Conclusions:

• Closing the knowledge gap on betel quid use and TB is essential for effective public health strategies.
• Multi-level interventions are needed, encompassing research, behavior change, legislation, and community engagement.
• Targeting betel quid use offers a feasible approach to curtail TB spread, particularly in high-prevalence regions.