The current prevalence and diversity of cystic echinococcosis in slaughtered animals in Egypt

El‐Dakhly, Khaled Mohamed; Arafa, Waleed M.; Shokier, Khaled A. M.; Noaman, Asmaa F.

doi:10.1007/s12639-019-01151-1

Cited by 17 publications

(18 citation statements)

References 35 publications

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“…Post-mortem inspection of the internal organs in the slaughterhouses showed that the lungs and the liver were highly infected and more susceptible to echinococcosis. These findings were also demonstrated by Joanny et al (27), Khan et al (28), El-Dakhly et al (29) and Kere et al (30). The presence of a high number of cysts in the lungs and the liver may be due to specific intensive blood supply from the portal veins and hepatic arteries of the liver and soft consistency of the lung tissue that allows easy development of the cyst (10).…”

Section: Discussionsupporting

confidence: 52%

Cystic Echinococcosis in Slaughtered Cattle and Sheep from North Macedonia

Rashikj

Cvetkovikj

Nikolovski

et al. 2022

Macedonian Veterinary Review

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Cystic echinococcosis is a cosmopolitan zoonotic infection, commonly seen in areas where livestock and dogs are kept together. The objective of this study was to investigate the prevalence of echinococcosis in slaughtered cattle and sheep in North Macedonia and to evaluate the location and fertility/sterility rates of the cysts. A total of 302 slaughtered animals were examined with visual inspection, palpation, and incision of the internal organs in order to detect cysts. Microscopic examination was carried out to determine the presence of protoscoleces. The overall prevalence of echinococcosis in slaughtered cattle and sheep was 60%. The presence of cysts increased with age in cattle. In both cattle and sheep, the most common affected organs were the liver and lungs infected with more than one cyst. The findings showed higher fertility rate in sheep which confirmed their role as the most important intermediate host. This study shows that North Macedonia is an endemic region, and serious control strategies should be implemented, with special emphasis on safety disposal of infected organs and anthelmintic treatment of the dogs.

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Section: Discussionsupporting

confidence: 52%

Cystic Echinococcosis in Slaughtered Cattle and Sheep from North Macedonia

Rashikj

Cvetkovikj

Nikolovski

et al. 2022

Macedonian Veterinary Review

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“…Moreover, Barghash et al ( 26 ) reported higher rates of 18.7% in camels from Cairo, Dairut, Mallawy, and Kafr-ElShikh, Egypt ( 26 ). Another study of CE in various municipals abattoirs in Cairo, Giza, and Beni-Suef governorate, Egypt, reported a higher prevalence rate of 10.82% ( 29 ). Conversely, lower values of 2.35 and 5% have been reported in camels from Beni Suef and Upper Egypt, respectively ( 25 , 68 ).…”

Section: Discussionmentioning

confidence: 99%

“…The discrepancy in the occurrence of CE in camels and cattle in the present study vs. those reported in several previous studies may be attributed to several factors, such as hygienic practices during slaughter, sex and age of the slaughtered animals, the method of detection, the geographic location, and various climatic conditions ( 25 , 45 , 73 , 74 ). The unhygienic disposal of condemned carcasses and infected organs, the ease of access stray dogs to slaughter houses, and the unauthorized slaughter are also relevant factors in the transmission of CE ( 29 , 30 , 74 , 75 ).…”

Section: Discussionmentioning

confidence: 99%

“…In accordance with its distribution, several previous studies revealed the endemicity of the disease in Egypt and neighboring countries of the Mediterranean basin and Middle East ( 19 – 30 ). The prevalence rates varied greatly among intermediate hosts of various species because of the influence of a variety of environmental factors and hygienic conditions ( 25 ), which is potentiated by the presence of infected stray dogs that are mostly used for guarding purposes or by the ease access of these dogs to slaughter houses ( 25 , 29 ).…”

Section: Introductionmentioning

confidence: 99%

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Epidemiological, Morphometric, and Molecular Investigation of Cystic Echinococcosis in Camel and Cattle From Upper Egypt: Current Status and Zoonotic Implications

et al. 2021

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Cystic echinococcosis has been considered one of the major parasitic zoonoses which is associated with severe economic losses. The present study was undertaken to investigate the occurrence, organ distribution, cyst fertility, and viability of cystic echinococcosis in slaughtered camels and cattle from various abattoirs in Assiut Governorate, Egypt. The work also involved morphological, morphometric, and molecular identification of the parasite. The occurrence of hydatid cysts was investigated in total number of 100 lungs of camels and 574 liver and lungs of cattle admitted to three slaughterhouses at Assiut Governorate, Egypt. Moreover, several individual variable factors, including organ involvement, age, sex, and hydatid cyst characteristics, were studied to identify their possible association with the occurrence of the disease. Genomic DNA was extracted from the hydatid cysts, followed by molecular identification of the parasite through amplification of ribosomal DNA internal transcribed spacer (ITS) regions. Hydatid cysts were found in 6 camels (6%) out of 100 inspected camels, while 5 hydatid cysts (0.87%) were detected in a total number of 574 cattle examined. The parasite was detected exclusively in lungs of camels, while lungs were the main organ infected by the parasite in cattle and one hydatid cyst was found in the liver (0.17%). In camel, 66.7, 16.65, and 16.65%of detected cysts were fertile, sterile, and calcified, respectively, while in cattle, these percentages were 60, 20, and 20%, respectively. None of the studied variable factors were significantly associated with the occurrence of the disease in camels, with the exception that all cysts were found in the lung. Conversely, we found a significant association (P < 0.05) between the age and sex of the slaughtered cattle and the occurrence of hydatid cysts. In this respect, the rate of infection was higher in female cattle and those cattle more than 5 years (P < 0.05). The morphological, morphometric, and molecular studies confirmed the presence of the parasite. Taken together, our results concluded that camels and cattle play a potential role in maintaining the transmission cycle of this zoonotic parasite.

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“…It is caused by the tapeworm larvae of Echinococcus granulosus with dog the main definitive host (Siracusano et al, 2012) and asynanthropic transmission cycle between dog and vegetarian animals as sheep and other edible animals as well as man (Swarna and Parija, 2008). In Egypt, hydatidosis endemicity was reported stray dogs (El Shazly et al, 2007) in edible animals (Haridy et al, 2000;El-Dakhly et al, 2019) and man (Ibrahim and Morsy, 2020;El-Sayed et al, 2020). The infection is mostly asymptomatic; the symptomatic one shared clinical symptoms with other hepatic diseases and cross serological tests (Fotoohi et al, 2013).…”

Section: Introductionmentioning

confidence: 99%