title: New migration pattern increases incidence in Canada of diseases common in tropical areas.
mesh_terms: D002170:Canada; D002648:Child; D003141:Communicable Diseases / Q000453:epidemiology*; D004641:Emigration and Immigration; D006801:Humans; D007918:Leprosy / Q000453:epidemiology; D010272:Parasitic Diseases / Q000453:epidemiology; D014330:Tropical Medicine; D014376:Tuberculosis / Q000453:epidemiology