Extensive larval migrations larval moults( larval migrations, larval moults ) occur through the host.
S. vulgaris: submucosal arteries pulmonary arteries( submucosal arteries, pulmonary arteries ) to the head of the cranial mesenteric artery caudal mesenteric artery( cranial mesenteric artery, caudal mesenteric artery ).
S. edentatus: liver lungs( liver, lungs ) and sub-peritoneum pleural cavity( sub-peritoneum, pleural cavity ) of the right flank.
S. equinus: liver colon( liver, colon ) and pancreas cecum( pancreas, cecum )

Prepatent periods:
S. vulgaris - 6 months 9 months( 6 months, 9 months )
S. edentatus - 11 months 6 months( 11 months, 6 months )
S. equinus - 9 months 11 months( 9 months, 11 months )