Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria

An epidemiological study of Trypanosoma evansi (T. evansi) infection in dromedaries was conducted in four wilayate (localities) of Southern Algeria: Béchar, El Bayadh, Ouargla, Tamanrasset. Between February 2014 and April 2016, 1056 camels of different ages and both sexes from 84 herds were sampled....

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Main Authors: Djamila Boushaki, Amel Adel, Mamadou Lamine Dia, Philippe Büscher, Hafsa Madani, Brahim Aymard Brihoum, Hassiba Sadaoui, Nadera Bouayed, Nadia Kechemir Issad
Format: Article
Language:English
Published: Elsevier 2019-07-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844019357469
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author Djamila Boushaki
Amel Adel
Mamadou Lamine Dia
Philippe Büscher
Hafsa Madani
Brahim Aymard Brihoum
Hassiba Sadaoui
Nadera Bouayed
Nadia Kechemir Issad
author_facet Djamila Boushaki
Amel Adel
Mamadou Lamine Dia
Philippe Büscher
Hafsa Madani
Brahim Aymard Brihoum
Hassiba Sadaoui
Nadera Bouayed
Nadia Kechemir Issad
author_sort Djamila Boushaki
collection DOAJ
description An epidemiological study of Trypanosoma evansi (T. evansi) infection in dromedaries was conducted in four wilayate (localities) of Southern Algeria: Béchar, El Bayadh, Ouargla, Tamanrasset. Between February 2014 and April 2016, 1056 camels of different ages and both sexes from 84 herds were sampled. The prevalence was determined through parasitological examination (Giemsa stained thin smear, GST), serological tests (CATT/T. evansi, ELISA/VSG RoTat 1.2, immune trypanolysis), and molecular tests (T. evansi type A specific RoTat 1.2 PCR and T. evansi type B specific EVAB PCR).The overall prevalence was 2.4 % with GST, 32.4% with CATT/T. evansi, 23.1% with ELISA/VSG RoTat 1.2, 21.0% with immune trypanolysis (TL), 11.2 % with RoTat 1.2 PCR and 0% with EVAB PCR.El Bayadh was the most affected wilaya with 11.8% positives in GST, 74.9% in CATT/T. evansi, 70.1% in ELISA/VSG RoTat 1.2 and 62.2% in immune trypanolysis. Only in Béchar, a non-significantly higher prevalence (13.6%) was observed with RoTat1.2 PCR than in El Bayadh (13.0%). We didn't find any evidence of the presence of T. evansi type B in the study area.
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spelling doaj.art-6d5d4c55b94a43ae9adda9e64ad69d562022-12-22T03:54:23ZengElsevierHeliyon2405-84402019-07-0157e02086Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of AlgeriaDjamila Boushaki0Amel Adel1Mamadou Lamine Dia2Philippe Büscher3Hafsa Madani4Brahim Aymard Brihoum5Hassiba Sadaoui6Nadera Bouayed7Nadia Kechemir Issad8Inspection Vétérinaire de la Wilaya d’Alger, Direction des Services Agricoles, Ministère de l’Agriculture, du Développement Rural et de la Pêche, Alger, Algeria; Ecole Nationale Supérieure Vétérinaire, Alger, Algeria; Laboratoire de biodiversité et environnement, Interaction génomes, Faculté des sciences biologiques, Université des Sciences et Technologies Houari Boumediène, Alger, AlgeriaUniversité Blida1, Institut des Sciences Vétérinaires, B.P. 270, Route de Soumaa, Blida, Algeria; Corresponding author.CAMES, BP 3447, Nouakchott, MauritaniaDepartment of Biomedical sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, BelgiumInstitut National de la Médecine Vétérinaire, Laboratoire Central Vétérinaire, Alger, AlgeriaInstitut National de la Médecine Vétérinaire, Laboratoire Vétérinaire Régional, Laghouat, AlgeriaInstitut National de la Médecine Vétérinaire, Laboratoire Central Vétérinaire, Alger, AlgeriaInstitut National de la Médecine Vétérinaire, Laboratoire Central Vétérinaire, Alger, AlgeriaLaboratoire de biodiversité et environnement, Interaction génomes, Faculté des sciences biologiques, Université des Sciences et Technologies Houari Boumediène, Alger, AlgeriaAn epidemiological study of Trypanosoma evansi (T. evansi) infection in dromedaries was conducted in four wilayate (localities) of Southern Algeria: Béchar, El Bayadh, Ouargla, Tamanrasset. Between February 2014 and April 2016, 1056 camels of different ages and both sexes from 84 herds were sampled. The prevalence was determined through parasitological examination (Giemsa stained thin smear, GST), serological tests (CATT/T. evansi, ELISA/VSG RoTat 1.2, immune trypanolysis), and molecular tests (T. evansi type A specific RoTat 1.2 PCR and T. evansi type B specific EVAB PCR).The overall prevalence was 2.4 % with GST, 32.4% with CATT/T. evansi, 23.1% with ELISA/VSG RoTat 1.2, 21.0% with immune trypanolysis (TL), 11.2 % with RoTat 1.2 PCR and 0% with EVAB PCR.El Bayadh was the most affected wilaya with 11.8% positives in GST, 74.9% in CATT/T. evansi, 70.1% in ELISA/VSG RoTat 1.2 and 62.2% in immune trypanolysis. Only in Béchar, a non-significantly higher prevalence (13.6%) was observed with RoTat1.2 PCR than in El Bayadh (13.0%). We didn't find any evidence of the presence of T. evansi type B in the study area.http://www.sciencedirect.com/science/article/pii/S2405844019357469ZoologyAlgeriaTrypanosoma evansiSurraDromedary camelGST
spellingShingle Djamila Boushaki
Amel Adel
Mamadou Lamine Dia
Philippe Büscher
Hafsa Madani
Brahim Aymard Brihoum
Hassiba Sadaoui
Nadera Bouayed
Nadia Kechemir Issad
Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria
Heliyon
Zoology
Algeria
Trypanosoma evansi
Surra
Dromedary camel
GST
title Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria
title_full Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria
title_fullStr Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria
title_full_unstemmed Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria
title_short Epidemiological investigations on Trypanosoma evansi infection in dromedary camels in the South of Algeria
title_sort epidemiological investigations on trypanosoma evansi infection in dromedary camels in the south of algeria
topic Zoology
Algeria
Trypanosoma evansi
Surra
Dromedary camel
GST
url http://www.sciencedirect.com/science/article/pii/S2405844019357469
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