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Fasciolosis is one of the major constraint factors for ovine production development in Ethiopia by inflecting direct
and indirect loss at different parts of the country. Ovine fasciolosis is an economically important parasitic disease of
sheep caused by trematodes species of the genus Fasciola, which migrate in the hepatic parenchyma and establis...
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After infection of three groups of rabbits by 50, 25 and 10 F. gigantica encysted metacercariae (EMC) for each animal, a rabbit appears as an unsuitable host for the development of this spe-cies of flukes. Rabbits need special precautions to help the worms to reach maturity before death of the infected animals. The juveniles wander in the liver tis...
The study on the transmission potential of Fasciola gigantica in irrigation water was conducted by investigating the life cycle stages of the parasite in water sources using sedimentation, centrifugation methods and microscopic examination respectively. The study revealed that eggs, cercariae and metacercariae life cycle stages of Fasciola gigantic...
Background
Human fascioliasis is an emerging zoonotic disease caused by the trematodes, or flatworms, Fasciola hepatica and Fasciola gigantica, also known as liver flukes. This retrospective study aimed to report the epidemiological findings in 95 cases of human fascioliasis in Dali, Yunnan Province, southwestern China, diagnosed between 2012 and 2...
In this study, polyclonal antibodies (pAb) were prepared against Fasciola gigantica excretory/ secretory (E/S) products and purified to demonstrate the highly reactive epitopes on the different life cycle stages of F. gigantica and on blood cells and different organs of naturally infected cattle, as well as to screen internal organs for localizatio...
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Citations
... F. gigantica is the largest liver fluke which is longer and narrower than F. hepatica, measuring 7.5 cm in length and 1.2 cm. in width. It also possesses two unequal suckers; a shorter cephalic cone and the fluke is more oblong with a larger rounded posterior end (Jeandron et al. 2010;Abdisa and Jilo 2017;CDC 2019). Fasciola worm is hermaphroditic; it possesses two dendritic highly branched testes and one ovary that produce eggs excreted with animal feces. ...
EPIDEMIOLOGICAL AND MOLECULAR STUDIES OF ANIMAL FASCIOLIASIS IN IRAQ
... africanus is limited to the lowland areas, including the Awash and Wabe Shebele Valleys and along the Ethiopian-Sudan border [21]. Lymnaea natalensis and L. truncatula are the two snail species belonging to the genus Lymnaea found to transmit Fasciola parasites causing fascioliasis in humans [25,26] and ruminant animals in Ethiopia [27,28] and other African countries [29,30]. Identifying factors that influence the distribution and habitat preference of the snail intermediate hosts is critical to snailborne disease prevention and control efforts. ...
Background:
Knowledge of the distribution and habitat preference of freshwater snail intermediate hosts can provide information to initiate and set-up effective snail control programmes. However, there is limited research conducted on the factors driving the occurrence and abundance of freshwater snail intermediate hosts in the Ethiopian Rift Valley. Hence, in this study, we investigated how environmental and biotic factors influence the occurrence and abundance of the snail intermediate hosts in Ethiopian Rift Valley region.
Methods:
Data on freshwater snails, physico-chemical water quality parameters, physical characteristics of habitat, predators and competitors, and anthropogenic activity variables were collected from 174 sampling sites during the wet season of 2017 and 2018. Generalized linear models were used to identify the main environmental and biotic factors affecting the occurrence and abundance of the snail species.
Results:
It was found that Bulinus globosus (31.7%) was the most abundant snail species followed by Lymnaea natalensis (21.6%), Lymnaea truncatula (15.1%) and Biomphalaria pfeifferi (14.6%). Generalized linear models indicated that physico-chemical parameters (water temperature, turbidity, chlorophyll-a, dissolved oxygen, chemical oxygen demand, alkalinity, calcium, magnesium, nitrate and ammonia), physical habitat characteristics (water depth, canopy cover, macrophyte cover and substrate type) and biotic factors (abundance of predators and competitors) were found to be the main variables determining the occurrence and abundance of snail species in the Ethiopian Rift Valley region. In terms of anthropogenic activities, human settlement, farming, bathing and swimming, clothes washing, grazing, drainage of land, car washing, boating, fishing and silviculture were also important variables determining the occurrence and abundance of snail species in the region.
Conclusions:
The findings reported herein suggest that integrated snail control strategies should be considered to control snails via protection of water bodies from disturbance by anthropogenic activities. In this way, it is possible to reduce the concentration of organic matter and dissolved ions in aquatic ecosystems which are conducive for the presence of snails.
A cross sectional study was conducted to determine prevalence and associated risk factors with fasciolosis in cattle at Jima Rare district, Ethiopia from June 2022 to November 2022. Examinations of the fasciolosis egg were performed by using sedimentation techniques. A total of 380 faecal samples from cattle were subjected to coprological investigation. Out of this 133 were positive for egg of Fasciola with an overall prevalence of 35% (133/380). The prevalence was 21.7% (20/92), 57.5% (54/94), 48% (46/96) and 13.3% (13/98) in Lenca Guracha, Dile kolba, Bebala and Misoma Dangago respectively. The variation of prevalence among kebeles were showed statistically significant difference (P<0.05). The prevalence rates of fasciolosis based on sex were 35.5% (64/185) in females was higher when compared to 34.6% (69/195) in male sheep. However, the difference is not statistically significant (P>0.05; X2 =0.03). Higher prevalence rate in adults 35.5% (65/181) was recorded when compared to young animals 34.2% (68/199). However, the difference is not statistically significant (P>0.05; X2 =0.13). The prevalence rate among body condition is indicates that 43.2% (63/146), 34.8% (47/135) and 23.2% (23/99) in cattle with poor body condition, medium and good respectively. The analysis of data showed statistically significant (P<0.05; X2 =10.3). As conclusion bovine fasciolosis was prevalent in district, thus causing major economic loss in the study area. Hence, control strategies targeted on the parasite and the intermediate hosts as well as implementation of appropriate grazing management in the study area were warranted.
