CAMEL TRYPANOSOMIASIS PDF
The most important disease of camel is Trypanosomiasis, vector bornprotozoal disease caused by Trypanosoma evansi parasite with wide. 1Nigerian Institute for Trypanosomiasis Research (NITR), Kaduna, Kaduna State, Camel trypanosomosis (surra), caused by Trypanosoma evansi, is the most. It is concluded that camel trypanosomiasis in Sudan is apparently caused by a single parasite species T. evansi and there were no other.
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Geographical distribution of Trypanosoma evansi in the world data synthesis. Natural infection is generally considered as mild or asymptomatic in sheep [ ]. Selective pressure has thus enabled them to elaborate refined escape mechanisms. In this paper, we have overviewed the basic characteristics of T.
When this phenomenon trypanosomiaiss is not known, and some authors even trypnaosomiasis suggested that it might have occurred in several instances [ 27 ]. Acute signs were reported from outbreaks into Mauritius, in Cervus unicolorwith acute fever, rapid loss of condition, emaciation, anaemia, and death [ 48 ].
Trypanosomiasis of camels (Camelus dromedarius) in Algeria: First report
View at Google Scholar W. In all cases, the potential for T. Trypanosomiasis-induced infertility in dromedary Camelus dromedarius bulls: However the name T. In recent decades in Europe, dourine has not been observed sincethough a recent outbreak occurred in Italy in [ 5556 ]; this may be an opportunity to study a recently isolated genetic material and provide some more conclusive data. The main characteristics of Trypanosoma evansi. Initially developing in camels in Vamel Africa, T.
The geographical distribution of surra is represented in Figure 1. As it is able to infect deer, wild pigs, and rodents [ 88 ], T.
BioMed Research International
Trypanosomes found in mammals including humans are blood and sometimes tissue parasites of the order Kinetoplastida, family of the Trypanosomatidae, genus Trypanosomaprincipally transmitted by biting insects, in which most of them undergo a biological cycle. One of the immunosuppression characteristics induced by T. These samples were easily drawn from the jugular vein and especially when moderate pressure was applied on the way of the vein to mid-distance between the thoracic inlet and the head.
Clearly, since it was mathematically demonstrated that the efficacy of mechanical transmission is directly proportional to parasitaemia [ 70 ], biting insects favour the spread of the most prolific strains of parasites in each host species.
These parasites are mostly transmitted cyclically by the tsetse fly in which the procyclic forms undergo a cycle of transformations and multiplications leading to infective metacyclic forms, which may be inoculated by the tsetse flies with canel saliva into a new host [ 4 ]. In fact, the accuracy of the work will be authenticated if two or more methods that complement each other are used.
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First outbreak of Trypanosoma evansi in camels in metropolitan France. It is thought to derive from Trypanosoma brucei by deletion of the maxicircle kinetoplastic DNA genetic material required for cyclical development in tsetse flies.
Among APCs, dendritic cells DCs are known to be strong elicitor and regulator cells of the immune system. Discussion The rate of infection is higher than that observed in some neighboring countries; the prevalence of trypanosomosis in Mauritania is only 1. The regulatory DCs became prevalent during the progress of infection, therefore reducing the amount of inflammatory DCs, and as a potential regulator of the inflammatory responses, suggesting cqmel use of the inflammatory responses to immunosuppress the host, but regulation to avoid irreversible pathophysiological effects [ ].
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Directory for Medical Articles. The dromedary in Algeria. Immunosuppression can paradoxically be a consequence of an exacerbated inflammatory reaction initially developed to control parasitaemia, as demonstrated by high levels trypanpsomiasis acute phase proteins C-reactive protein, haptoglobin, and alpha 2-macroglobulin concomitantly with immunoglobulins Ig M targeting VSG [ ].
For this reason, T. Animals and blood smears. Blood samples have been carefully taken after animal immobilization. It can affect a very large range of domestic and wild hosts including camelids, equines, cattle, buffaloes, sheep, goats, pigs, dogs and other carnivores, deer, gazelles, and elephants. Distinction [ 52 ] and even existence of this parasite are nowadays questioned since genetic differentiation is almost impossible, especially due to the absence of satisfying reference strains of T.
Be that as it may, a hypothetical evolution tree can summarize these data as presented in Figure 2.