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World map showing the distribution areas of Trichinella spiralis (Tsp), Trichinella pseudospiralis from north America (TpsN), T. pseudospiralis from Europe and Asia (TpsP), T. pseudospiralis from Tasmania (TpsA), Trichinella papuae (Tpa), and Trichinella zimbabwensis (Tzi). (Modified from www.iss.it/site/Trichinella/index.asp with permission of the publisher.)
