Abstract
Cystic echinococcosis (CE) is a zoonotic disease of great importance worldwide. This study was conducted to determine the prevalence and antigenic profile of Echinococcus cysts (CE cysts) in camels and cattle. The lungs, livers, hearts, and kidneys of 560 animals, comprising 304 camels and 256 cattle slaughtered in the Maiduguri abattoir, were examined for CE. Blood samples were collected for serology. Protein profiles of CE fluids were analyzed using indirect Enzyme Linked Immunosorbent Assay while Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS-PAGE) was used to characterize the electrophoretic pattern of different CE cyst fluid samples. The overall prevalence of CE was 8.4%, 14.14% (95% CI = 10.65–18.54%) in camels and 1.60% (95% CI = 0.46–4.09%) in cattle. Adult camels 41 (16.21%) (95% CI = 12.15–21.27%) had a higher prevalence than the young camels 2 (3.92%) (95% CI = 0.33–13.97%) (p = 0.038). In cattle, only adults 4 (2.0%) had cysts. Higher prevalence of CE was recorded in male 22 (16.42%) (95% CI = 11.03–23.68%) than female 21 (12.35%) (95% CI = 8.16–18.21%) camels [p = 0.399] while only female cattle 3 (2.2%) had cysts. Higher prevalence of CE was recorded in the livers of 34 (11.18%) (95% CI = 8.08–15.25%) than in the lungs 25 (8.22%) (95% CI = 5.59–11.90%) of camels [p = 0.273]. Of the 47 cysts collected, 43 (91.49%) and 4 (8.51%) were from camels and cattle, respectively. A total of 18 (38.30%) fertile, 17 (36.17%) non-fertile, and 12 (25.53%) calcified cysts were recovered in animals. Overall seroprevalence of 52.63% (95% CI = 47.02–58.18%) and 35.55% (95% CI = 29.93–41.59%) were observed in camels and cattle in this study. The SDS-PAGE of camel CE cyst fluids revealed protein bands at 64kda, 91kda, 160kda, and 200kda molecular units while the purified cyst fluids revealed bands at 64kda, 91kda, 120kda, 160kda, and 200kda. Regular meat inspections and the exclusion of dogs from abattoir premises are strongly encouraged. Investigation into local prevailing factors encouraging transmission should be carried out.
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Data availability and material
The data sets in this study are available from the corresponding author on reasonable request.
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The authors extend their appreciation to the Parasitology laboratories of the University of Maiduguri Veterinary Teaching Hospital and the Department of Zology, Ahmadu Bello University, Zaria for the laboratory space.
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Conceptualization, RAY, IHN, ISN and SAL; methodology, RAY, IHN, ISN and SAL; formal analysis, RAY, IHN, ISN, SAL and CAY; investigation, RAY, IHN, ISN and SAL; writing original draft, RAY, IHN, ISN, SAL and CAY; resources, review and editing, RAY, IHN, ISN, SAL, CAY, LA and GE-SB; supervision, IHN, ISN and SAL; project administration, RAY, IHN, ISN and SAL.
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Yakubu, R.A., Nock, I.H., Ndams, I.S. et al. Detection of Echinococcus granulosus sensu lato cysts and seroprevalence of cystic echinococcosis in cattle and camels in Maiduguri Abattoir. J Parasit Dis 46, 876–888 (2022). https://doi.org/10.1007/s12639-022-01508-z
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DOI: https://doi.org/10.1007/s12639-022-01508-z