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[Schistosoma mansoni] [S. haematobium] [S. japonicum] [S. mekongi] [S. intercalatum]

A	B

A, B: Schistosoma mansoni eggs in a patient from Egypt.  These eggs are large (length 114 to 180 µm) and have a characteristic shape, with a prominent lateral spine near the posterior end.  The anterior end is tapered and slightly curved.  When the eggs are excreted, they contain a mature miracidium (especially visible in A).