Table 1.
Group and total number of Aelurostrongylus abstrusus and Troglostrongylus brevior larvae detected in the mucus of Helix aspersa snails or in the water solution where gastropods had died.
Table 2.
Total number and percentage of Aelurostrongylus abstrusus and Troglostrongylus brevior L3 detected in each snail specimens from different groups following water flooding and digestion examinations.
Fig 1.
(A) and A. abstrusus (B) detected in the mucus of H. aspersa snails at 25 days post-infection (scale bar = 50μm).
Fig 2.
Histopathology: Free larvae of A. abstrusus (21 dpi) in snail foot observed in transverse (hash) and oblique sections (star) in the fibro-muscular tissues.
(A); oblique larval section of T. brevior (9 dpi) the subpallial tissue (arrow) (B) (scale bar = 50μm; H&E).
Fig 3.
Histopathology: Inflammatory response to A. abstrusus in the H. aspersa.
Cell-poor granuloma formation with vacuolated amebocytes at 3dpi. (A); cell-rich granuloma formation at 9 dpi (B); small necrotic granuloma at 15 dpi (C); fibroblast-like reaction at 27 dpi (D) (scale bar = 50μm; H&E).
Fig 4.
Histopathology: Larvae of A. abstrusus (asterisks) in the snail foot at 9 dpi, within granuloma formations.
(A); large necrotic granuloma with peripheral well-preserved amebocytes and their debris in the centre in snail infected by T. brevior at 21 dpi (B); polipoid enlargement of the ventral surface of the foot with dilated vessels and an abscess-like formation in T. brevior-infected snail (21 dpi) (C); multifocally-distributed amebocytes aggregates in the kidney parenchyma in T. brevior-infected snail (3 dpi) (D) (scale bar = 50μm; H&E).