<unk>  is common in the Caribbean, Central and South America, and India and southeast Asia. In the Caribbean, it appeared to be more common in Puerto Rico and Haiti. Epidemics in southern India have occurred.
Tropical sprue
Environmental enteropathy
Congenital tufting enteropathy
Coeliac disease
Food protein-induced enterocolitis syndrome
Autoimmune enteropathy
Hereditary diffuse gastric cancer
Schnitzler syndrome