Multicenter Case-Control Study of Behavioral, Environmental, and Geographic Risk Factors for Talaromycosis, Vietnam

Area of Science:

• Medical Mycology
• Infectious Diseases
• Epidemiology

Background:

• Talaromycosis is a severe fungal infection prevalent in Southeast Asia, particularly impacting individuals with advanced HIV.
• Understanding risk factors is crucial for preventing and managing this life-threatening disease.

Purpose of the Study:

• To identify independent risk factors for talaromycosis in immunocompromised individuals in Vietnam.
• To investigate the association between geographic region, travel history, and talaromycosis incidence.

Main Methods:

• A multicenter, case-control study was conducted in Vietnam.
• 205 culture-confirmed talaromycosis cases were matched with 405 controls based on age, sex, and CD4 count.
• Statistical analysis, including odds ratios, was used to determine risk factors.

Main Results:

• Occupational exposure to tropical plants (OR 1.73) and farmed animals (OR 2.07) were significant independent risk factors.
• Individuals from highland regions had a higher risk of talaromycosis.
• Living in or traveling to highland regions significantly increased risk for those from lowland areas (OR 3.15).

Conclusions:

• Occupational exposures and geographic factors, particularly highland residence or travel, are critical risk factors for talaromycosis.
• The study confirms the link between talaromycosis, soil exposure, and highland regions in Vietnam.
• Findings underscore the need for targeted prevention strategies in endemic areas and for travelers.