A molecular survey of cystic echinococcosis in Sudan

Omer, Rihab Ali; Dinkel, Anke; Römig, Thomas; Mackenstedt, Ute; Elnahas, A.; Aradaib, Imadeldin E.; Ahmed, Mohamed E.; Elmalik, Khitma Hassan; Adam, Abdelnasir

doi:10.1016/j.vetpar.2010.01.004

Cited by 91 publications

(88 citation statements)

References 26 publications

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“…All genotyped cysts from patients belonged to G6 (Bardonnet et al, 2002). The same is true for three patients in Sudan, who originated from the Nuba mountains, Darfur and Khartoum, respectively (Omer et al, 2010). Three ultrasound surveys for human CE have been done in the region, all in Sudan in Tamboul area of central Sudan, 1 of 300 rural residents (0.33%) was infected , while in the same area a larger study covering 1055 people resulted in a prevalence of 1.04%.…”

Section: U N C O R R E C T E D P R O O Fsupporting

confidence: 56%

“…The high prevalence in camels might indicate a higher susceptibility of this animal for the prevailing parasite taxon, but data have to be interpreted with care since camels are usually slaughtered at a far older age than other livestock. In cattle-raising areas of eastern Sudan, the White Nile region and South Darfur (Sudan), E. ortleppi seems to be of sporadic occurrence in cattle (Omer et al, 2010;Omer, personal communication). In an older survey of wild herbivores in Chad , in 1 of 14 investigated warthogs (Phacochoerus africanus) and 1 of 9 scimitarhorned oryx antelopes (Oryx dammah) (now extinct in the wild) CE was diagnosed, but in the same study, 8 elephants (Loxodonta africana), 18 lelwel hartebeests (Alcelaphus lelwel), 7 korrigum (Damaliscus korrigum), 2 common duiker (Sylvicapra grimmia), 3 oribi (Ourebia ourebi), 4 bohor reedbucks (Redunca redunca), 7 kobs (Kobus kob), 14 waterbucks (Kobus ellipsiprymnus defassa), 36 dorcas gazelles (Gazella dorcas), 17 red-fronted gazelles (Eudorcas rufifrons), 9 dama gazelles (Nanger dama), 9 roan antelopes (Hippotragus U N C O R R E C T E D P R O O F equinus), 1 addax (A. nasomaculatus), 2 greater Kudu (Strepsiceros cottoni), and 4 African buffaloes (Syncerus caffer) were negative.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

“…The camel strain (G6) appears to be the dominating CE agent in the entire region, although comprehensive molecular surveys have only been done in Sudan so far (Kamal et al, 2011;Omer et al, 2010). The limited number of human cases in this region (compared to eastern Africa, for example) has been hypothetically linked to a lower infectivity or pathogenicity of that genotype for humans, compared to the genotypes of E. granulosus which may be absent or rare in this region.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

“…The spatial heterogeneity of CE prevalence in sheep is therefore difficult to explain and might be linked to environmental factors, as prevalence in small stock of the semiarid Turkana area of Kenya is lower than in the climatically much more favourable Maasailand (Table S11). Sheep sampled in the northern and central parts of South Sudan as well as in Somalia were rarely infected, and only infertile cysts of E. intermedius G6/7 were found; possibly, E. granulosus does not occur in the region (Macchioni et al, 1984;Omer et al, 2010). In goats, CE prevalence is generally lower, and the majority of fertile cysts in Kenya and Ethiopia belonged to E. intermedius G6/7 or to E. ortleppi.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

See 3 more Smart Citations

Global Distribution of Alveolar and Cystic Echinococcosis

Deplazes

Rinaldi

Rojas

et al. 2017

Advances in Parasitology

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757

679

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Section: U N C O R R E C T E D P R O O Fsupporting

confidence: 56%

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

See 2 more Smart Citations

Global Distribution of Alveolar and Cystic Echinococcosis

Deplazes

Rinaldi

Rojas

et al. 2017

Advances in Parasitology

Self Cite

757

679

View full text Add to dashboard Cite

“…Studies on the prevalence of CE in sheep from different countries of the world reported to be between 10.6 and 75%, (Dalimi et al, 2002;Azlaf and Dakkak, 2006;Scala et al, 2006;Christodoulopoulos et al, 2008;Kebeda et al, 2009;Acosta-Jamett et al, 2010;Omer et al, 2010;Oryan et al, 2012). This wide range of variations could be due to the variations in the environmental conditions, the way of animal raising, strains of E. granulosus (McManus, 2006;Ibrahim, 2010).…”

Section: Discussionmentioning

confidence: 99%

Incidence of Cystic Echinococcosis in Libya: I. Seroprevalence of Hydatid Disease in Sheep and Goats Naturally Exposed to the Infection in the North Midland Region

Ibrahem¹,

Annajar²,

Ibrahem³

2016

American Journal of Animal and Veterinary Sciences

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Hydatid disease is one of the most and serious public health and veterinary problems in Libya and other North African countries. Thirteen rural villages of two main districts bordered to each other at the north midland of the country namely, Misrata which is almost agricultural area and about 200 km east of Tripoli and Sirt which is almost pasture area and about 500 km east of Tripoli, were included in the current study. Incidence of cystic echinococcosis was investigated serologically using serum samples collected from 2651 animals of three groups; young sheep under two years old (240), adult sheep over two years old (2082) and adult goats over two years old (329). Antigen B prepared from camel crude hydatid cyst fluid together with ELISA were used for detection of total IgG antibodies against hydatid cysts in the collected serum samples. 1377/2651 serum samples from all animal groups of both districts gave overall ELISA seropositive result of 52%. The overall ELISA seropositivity for each group of animals was 55/240 (23%), 1235/2082 (59%) and 87/329 (26%) for young sheep, adult sheep and goats (all adults) respectively. In Misrata district, the overall seropositivity was 729/1243 (59%) and among the villages it was 43% from Saso and 78% from Tawergha; while in Sirt district, the overall seropositivity was 648/1408 (46%) and among the villages it was 25% from El-Gbeba and 63% from El-Arbaien. Statistical analysis showed no significant differences in the rate of seropositivity between the three groups of animals which was 23, 59 and 26%, in young sheep, adult sheep and adult goats respectively and between the two district areas which was 59% in Misrata and 46% in Sirt. Also statistical analysis showed no significant differences in the rate of seropositivity between the different age animal groups which was 23% for young sheep and 68% for adult sheep 7-<10 yrs old and in the case of goats, it was 24% for goats 2-<4 yrs old to 29% for goats 7+ yrs old.

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Prevalence and associated risk factors of hydatidosis in cattle slaughtered at Wolaita Sodo municipality abattoir

Endale,

Mathewos

2024

Veterinary Medicine & Sci

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BackgroundHydatidosis, caused by the larval stage of the tapeworm Echinococcus granulosus, affect cattle by forming hydatid cyst in thier lungs, livers and pose great financial loss in animal production and country's economy by both direct and indirect effect. Despite its great economic and health importance, there is an absence of current information on cystic echinococcosis in cattle slaughtered at Wolaita Sodo municipality abattoir in Ethiopia.ObjectivesCurrent investigation determines the prevalence, organ distribution and fertility of hydatid cysts in cattle slaughtered at the Wolaita Sodo municipality abattoir in Ethiopia.MethodsA cross‐sectional study was conducted from February, 2023, to October, 2023, at Wolaita Sodo municipality abattoir in southern Ethiopia, through regular meat examinations and cyst characterisation to determine the prevalence, organ distribution and fertility of hydatid cysts.ResultsThe overall prevalence of hydatidosis recorede in current study was 17.9% (69/384) and has shown a statistically significant association (p < 0.05) with the body condition of cattle. However, there was no statistically significant association (p > 0.05) between the prevalence of hydatidosis and other risk factors such as sex, breed, production system and origin of animals. This study showed that the lungs and liver were the most affected organs in cattle, followed by the spleen and kidneys. On cyst characterisation, the majority of hydatid cysts were found sterile (55.4%) followed by fertile (38.8%) and calcified (8.7%) cysts. Out of 125 fertile hydatid cysts tested for survival, 18.8% (58/321) were viable and 20% (67/321) were nonviable.ConclusionThe finding of this study shows that cystic echinococcus was important health threat of the cattle and widespread in the internal organs of affected cattle causing significant economic loss by condemning edible organs that are not suitable for human consumption. Therefore, urgent and integreted preventive action is needed to disrupt the life cycle of cystic echinococcosis to tackle subsequent financial loss and risk of zoonosis to humans in the study area.

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A molecular survey of cystic echinococcosis in Sudan

Cited by 91 publications

References 26 publications

Global Distribution of Alveolar and Cystic Echinococcosis

Global Distribution of Alveolar and Cystic Echinococcosis

Incidence of Cystic Echinococcosis in Libya: I. Seroprevalence of Hydatid Disease in Sheep and Goats Naturally Exposed to the Infection in the North Midland Region

Prevalence and associated risk factors of hydatidosis in cattle slaughtered at Wolaita Sodo municipality abattoir

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