GI Infections & Global/Tropical Gastroenterology

GI Infections & Global/Tropical Gastroenterology focuses on gastrointestinal diseases caused by infectious agents that are highly prevalent in low- and middle-income countries and tropical regions, where sanitation, clean water access, and healthcare infrastructure may be limited. These conditions represent a major global health burden, contributing significantly to morbidity, mortality, malnutrition, and impaired childhood development. Common bacterial pathogens include Vibrio cholerae, Salmonella, Shigella, Campylobacter, and Escherichia coli, while viral agents such as rotavirus and norovirus and parasitic infections including Entamoeba histolytica, Giardia lamblia, and helminths are also widespread. Clinical manifestations range from acute self-limiting diarrhea to severe dehydrating illness, chronic enteropathy, gastrointestinal bleeding, and systemic complications. Tropical gastroenterology also encompasses region-specific diseases such as tropical sprue, intestinal tuberculosis, strongyloidiasis, and hepatosplenic schistosomiasis. The interaction between infections, undernutrition, and immune dysfunction is a defining feature in these settings, often leading to recurrent illness and long-term sequelae. Diagnosis relies on a combination of clinical evaluation, stool microscopy, culture, antigen detection, molecular diagnostics, and endoscopic assessment in selected cases.