Molecular and Morphological Characterization of Fasciola spp. Isolated from Different Host Species in a Newly Emerging Focus of Human Fascioliasis in Iran

Table 2

Comparative morphometrical data on adults F. hepatica and F. gigantica from naturally infected cattle, sheep, and goat of the Kohgiluyeh and Boyer-Ahmad province, southwest of Iran.

Parameters (mm)	F. hepatica			F. gigantica
Host	Cattle	Sheep	Goat	Cattle
Number of adult flukes	19	19	22	18
Body length (BL)	15.09–36.84*	19.77–37.37	20.58–32.58	27.22–51.19
	23.08 ± 5.27**	28.17 ± 5.14	27.31 ± 3.67	41.08 ± 6.12
Maximum body width (BW)	6.23–13.22	8.37–13.88	9.07–21.41	7.03–8.98
	9.93 ± 1.79	11.33 ± 1.47	11.89 ± 2.49	8.14 ± 0.62
Body width at ovary level (BWOv)	2.6–5.26	3.36–6.01	3.95–10.39	2.76–4.3
	3.95 ± 0.68	4.7 ± 0.84	5.45 ± 1.31	3.36 ± 0.49
Cone length (CL)	1.70–2.88	1.77–3.03	1.62–3.13	2.54–3.72
	2.26 ± 0.36	2.47 ± 0.43	2.26 ± 0.38	3.1 ± 0.35
Cone width (CW)	2.08–3.94	2.3–4.38	1.89–3.69	3.01–4.34
	2.92 ± 0.41	3.13 ± 0.62	2.91 ± 0.41	3.56 ± 0.34
Maximum diameter of oral sucker (OS max)	0.49–0.96	0.33–0.88	0.57–0.95	0.61–1.05
	0.69 ± 0.14	0.7 ± 0.12	0.71 ± 0.1	0.81 ± 0.11
Minimum diameter of oral sucker (OS min)	0.57–1.13	0.51–1.23	0.65–1.13	0.84–1.13
	0.78 ± 0.13	0.85 ± 0.17	0.83 ± 0.12	0.96 ± 0.08
Maximum diameter of ventral sucker (VS max)	0.84–1.28	0.91–1.76	0.64–1.62	1.31–2.09
	1.1 ± 0.11	1.29 ± 0.20	1.21 ± 0.19	1.76 ± 0.2
Minimum diameter of ventral sucker (VS min)	0.84–1.52	0.82–1.77	0.98–1.38	1.21–4.1
	1.06 ± 0.15	1.19 ± 0.19	1.17 ± 0.11	2.99 ± 0.74
Distance between anterior end of body and ventral sucker (A-VS)	1.58–3.3	1.84–3.36	0.96–3.52	2.18–2.93
	2.43 ± 0.45	2.57 ± 0.48	2.45 ± 0.53	2.59 ± 0.24
Distance between suckers (OS-VS)	1.01–2.31	1.25–3.04	1.38–2.53	1.34–2.28
	1.73 ± 0.38	1.97 ± 0.48	1.81 ± 0.31	1.79 ± 0.24
Distance between ventral sucker and union of vitelline glands (VS-Vit)	9.22–20.93	8.58–20.93	11.24–19.64	11.4–27.99
	12.47 ± 3.27	16.06 ± 3.3	15.93 ± 2.24	19.79 ± 6.49
Distance between Vit and posterior end of body (Vit-P)	2.79–12.23	6.89–13.41	3.02–11.96	8.39–26.71
	7.16 ± 2.6	8.83 ± 1.85	8.13 ± 2.31	17.83 ± 4.91
Distance between VS and posterior end of body (VS-P)	12.38–32.29	17.01–32.74	17.36–29.14	22.38–46.93
	12.74 ± 5.21	24.89 ± 4.62	23.79 ± 3.3	37.67 ± 6.39
Pharynx length (PhL)	0.46–1.15	0.65–1.26	0.81–1.38	0.67–1.09
	0.86 ± 0.18	0.99 ± 0.18	0.99 ± 0.13	0.91 ± 0.11
Pharynx width (PhW)	0.32–0.69	0.32–0.71	0.31–1.05	0.37–1.22
	0.44 ± 0.1	0.47 ± 0.1	0.52 ± 0.17	0.54 ± 0.17
Testicular space length (TL)	7.31–18.82	7.03–19.11	9.45–18.34	3.52–24.41
	10.66 ± 2.99	13.9 ± 3.04	13.55 ± 2.24	16.45 ± 5.37
Testicular space width (TW)	4.1–8.81	5–9.59	4.03–8.75	3.24–5.2
	6.09 ± 1.08	7.1 ± 1.19	7.16 ± 1.09	4.44 ± 0.48
Body area (BA)	94.01–398.97	165.47–478.81	212.23–458.38	234.9–452.51
	235.2 ± 86.6	322.51 ± 83.96	322.55 ± 63.36	334.34 ± 56.58
Oral sucker area (OSA)	0.3–1.08	0.16–1.07	0.4–0.92	0.55–1.18
	0.55 ± 0.19	0.6 ± 0.21	0.59 ± 0.16	0.78 ± 0.15
Ventral sucker area (VSA)	0.7–1.76	0.79–3.11	0.62–2.2	1.21–4.1
	1.17 ± 0.23	1.57 ± 0.5	1.43 ± 0.33	2.99 ± 0.74
Pharynx area (PhA)	0.16–0.74	0.25–0.84	0.29–1.44	0.38–0.81
	0.39 ± 0.13	0.47 ± 0.17	0.53 ± 0.26	0.49 ± 0.11
BL/BW ratio (BL/BW)	1.83–3.4	1.15–3.44	1.82–3.43	3.15–6.09
	2.32 ± 0.33	2.43 ± 0.49	2.37 ± 0.43	5.06 ± 0.86
Ratio between sucker areas (OSA/VSA)	0.28–0.89	0.18–0.7	0.24–0.77	0.13±0.6
	0.47 ± 0.17	0.4 ± 0.14	0.43 ± 0.14	0.27 ± 0.09
Ratio between BWOv and CW (BWOv/CW)	0.32–1.85	1.02–1.86	0.44–2.17	0.78–1.11
	1.29 ± 0.3	1.51 ± 0.24	1.73 ± 0.53	0.93 ± 0.09
Ratio between BL and VS-P (BL/VS-P)	1.06–1.26	0.89–1.19	0.11–1.18	1.05–1.21
	1.17 ± 0.48	1.12 ± 0.04	1.09 ± 0.22	1.09 ± 0.05

∗Minimum–maximum (mm).
∗∗Mean ± SD.