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  • Title: Tick-transmitted diseases in dogs: clinicopathological findings.
    Author: Foglia Manzillo V, Cappiello S, Oliva G.
    Journal: Parassitologia; 2006 Jun; 48(1-2):135-6. PubMed ID: 16881415.
    Abstract:
    In this article we describe the main clinicopathological findings of some tick-transmitted diseases observed in Italy, due to Ehrlichia canis and Babesia canis, and most rarely Anaplasma phagocytophilum and Anaplasma platys. Canine monocytic ehrlichiosis (CME) is a multisystemic disorder that is characterized by various clinical signs. Acutely-infected dogs show various clinical and haematological abnormalities including fever, lymphadenopathy, anorexia, lethargy, depression and thrombocytopenia. Many dogs with CME evolve in to an asymptomatic or chronically symptomatic carrier states. In Italy there are very few cases of Canine Granulocytic Ehrlichiosis (CGE) and all are attributed to A. phagocytophilum. The early manifestations of CGE are usually mild and consist in acute onset of fever and depression with or without thrombocytopenia. Lameness due to polyarthritys is also possible. Other clinical manifestations most rarely described are very similar to those reported in chronic form of E. canis infections. There are very few studies about clinicopathological findings of canine babesiosis in Italy. In our country this infection is caused by Babesia canis (large form of parasite) subspecies B. canis canis and B. canis vogeli. These two subspecies are morphologically indistinguishable. Clinical signs reflect the intravascular and extravascular haemolysis due to the life cycle of the parasite. The most common haematological abnormalities found in canine babesiosis are anaemia and thrombocytopenia. It is important to point out that co-infection between two or more agents is possible. In this case it is very difficult to attribute the clinical signs and haematological and/or biochemical abnormalities to a single specific agent.
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