Melioidosis as an emerging global problem

Area of Science:

• Infectious Diseases
• Microbiology
• Epidemiology

Background:

• Melioidosis incidence is poorly understood outside Southeast Asia and Australia.
• Burkholderia pseudomallei is the causative agent of melioidosis.
• Diagnosis requires clinical awareness and specialized laboratory capabilities, often lacking in rural tropical areas.

Purpose of the Study:

• To highlight the limited knowledge of melioidosis epidemiology globally.
• To discuss the challenges in diagnosing melioidosis in resource-limited settings.
• To explore the potential for melioidosis spread due to increased global travel.

Main Methods:

• Review of existing literature on melioidosis incidence and distribution.
• Analysis of diagnostic limitations in resource-limited settings.
• Assessment of factors influencing disease spread, such as international travel.

Main Results:

• Melioidosis is presumed widespread in tropical Southeast Asia but underreported.
• Evidence suggests endemicity in the Indian subcontinent and Caribbean.
• Unconfirmed reports indicate potential presence in South Africa and the Middle East.
• Most temperate climate cases are imported, with a notable exception of a French outbreak.
• Increased global travel poses a risk for geographic expansion of melioidosis.

Conclusions:

• Melioidosis is likely a significant global health issue, particularly in tropical regions.
• Underdiagnosis is a major challenge due to diagnostic limitations.
• Global travel increases the risk of melioidosis emergence in non-endemic areas.