Figure 1. A) Metacercaria of Opisthorchis felineus in muscles of a tench (Tinca tinca) from Lake Bolsena (Latium region, central Italy). Scale bar = 100 μm. B) Metacercaria of O. felineus collected from a tench filet by digestion with 1% pepsin and 1% HCl. Scale bar = 100 μm. C) Egg detected in feces of the index patient of the August 2007 outbreak. Scale bar = 10 μm.