CANIS ET FELIS EHRLICHIOSIS PDF

Bone marrow hypoplasia is found in cats with pancytopenia or anaemia and thrombocytopenia on haematology Breitschwerdt et al. From Wikipedia, the free encyclopedia. Ehrlichiosis The main indication for diagnostic investigations for Rickettsial diseases is a febrile syndrome affecting cats exposed to ticks in endemic areas, especially stray or outdoor pet cats not protected by the regular use of appropriate ectoparasiticides. Less information is available about the effect of these agents in cats.

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Introduction Little recorded information about the disease in cats. Cause: serious tick-borne rickettsial infections of dogs and cats acquired in parts of the tropics, sub-tropics, warm temperate regions.

Usually tick transmitted. Signs: non-specific in the acute phase, sudden onset of fever, depression and anorexia. Diagnosis: positive serology or documentation of the presence of Ehrlichia morulae in lymphocytes or monocytes by cytology or PCR. Concurrent infection with other tick borne infections may occur. In the latter relatively little is known of the disease, including the identity of the Ehrlichia species involved and epidemiology.

This component will review what is known of infection in the cat and then infection in the dog, since details of infection in this species are better understood. Pathogenesis Etiology E. Anaplasma platys formerly known as E. Predisposing factors Exotic dogs imported as adults into endemic areas from non-endemic areas. Immunological status of the host. Stress including malnutrition and pregnancy. Virulence of the strain of the organism.

Size of challenge dose. Dogs can remain infected in a sub-clinical carrier state for several years therefore iatrogenic transmission can occur. Specific The vector for E. Failure to treat adequately in dogs may lead to the development of the sub-clinical or progression to the chronic form, tropical canine pancytopenia.

Clinical signs of canine acute monocytic ehrlichiosis tend to be non-specific with insidious development of the chronic form in which bone marrow suppression results in pancytopenia and a hemorrhagic crisis.

Vasculitis affecting various organs including lungs, kidneys and possibly the meninges. Platelet dysfunction also contributes to the occurrence of hemorrhages. Infection appears to induce an autoimmune response including anti-platelet antibodies. Severely affected animals are susceptible to secondary infections. Timecourse Incubation period of monocytic canine ehrlichiosis ranges from days.

The course of the illness is variable with the acute phase lasting weeks. Clinical signs of the acute phase can resolve spontaneously in weeks. Death may occur within a week of the onset of clinical signs. The subclinical phase lasts for months or years before the development of the chronic phase in some infected dogs. Death may occur within a few hours of the onset of clinical signs in tropical canine pancytopenia with severe hemorrhages.

Epidemiology E. Transtadial but not transovarial transmission occurs in infected ticks. Ticks are more abundant, and acute infections more common, during the warm season. Diagnosis Sign up now to purchase a 30 day trial, or Login Treatment Sign up now to purchase a 30 day trial, or Login Prevention Sign up now to purchase a 30 day trial, or Login Outcomes Sign up now to purchase a 30 day trial, or Login Further Reading.

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CANIS ET FELIS EHRLICHIOSIS PDF

Wild small mammals are the natural reservoirs. Anaplasma phagocytophilum Human granulocytic anaplasmosisAnaplasmosis Ehrlichia chaffeensis Human monocytotropic ehrlichiosis Ehrlichia ewingii Ehrlichiosis ewingii infection. Lappin MR, Hawley J Amblyomma americanum Amblyomma cajennense Amblyomma triguttatum Ornithodoros: Rickettsia rickettsii Rocky Mountain spotted fever Rickettsia conorii Boutonneuse fever Rickettsia japonica Japanese spotted fever Rickettsia sibirica North Asian tick typhus Rickettsia australis Queensland tick typhus Rickettsia honei Flinders Island spotted fever Rickettsia africae African tick bite fever Rickettsia parkeri American tick bite fever Rickettsia aeschlimannii Rickettsia aeschlimannii infection. Tick-borne diseases and mite-borne diseases. Ehrlichiosis can also blunt the immune system by suppressing production of TNF-alphawhich may lead to opportunistic infections such as candidiasis. Serological and molecular analysis of feline vector-borne anaplasmosis and ehrlichiosis using species-specific peptides and PCR. Rickettsia felis Flea-borne spotted fever.

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Ehrlichiosis

Presence of Anaplasma spp morulae arrows in neutrophils. Ehrlichiosis — Wikipedia Ehrlichiosis is a nationally notifiable disease in the United States. In fact, a transient lymphopenia was the only abnormality detected during 13 weeks of observation after tick infestation, concerning general appearance, appetite, body temperature and cell blood count of the experimental cats Lappin et al. For people allergic to antibiotics of the tetracycline class, rifampin caniss an alternative. Tick-borne Rickettsia rickettsii Rocky Mountain spotted fever Rickettsia conorii Boutonneuse fever Rickettsia japonica Japanese spotted fever Rickettsia sibirica North Asian tick typhus Rickettsia australis Queensland tick typhus Rickettsia honei Flinders Island spotted fever Rickettsia africae African tick bite fever Rickettsia parkeri American tick bite fever Rickettsia aeschlimannii Rickettsia aeschlimannii infection. Reprinted with permission from Adaszek et al.

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Sacage Bacterium-related cutaneous conditions Tick-borne diseases. They give rise to cytoplasmic inclusion bodies: Elsevier, St Louis, Missouri, p. A rash may occur, but is uncommon. They are mostly non-specific and consist of fever, anorexia, lethargy ehrlicbiosis dehydration. The average reported annual incidence is on the order of 2. Lyme disease Relapsing fever borreliosis Baggio—Yoshinari syndrome.

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Introduction Little recorded information about the disease in cats. Cause: serious tick-borne rickettsial infections of dogs and cats acquired in parts of the tropics, sub-tropics, warm temperate regions. Usually tick transmitted. Signs: non-specific in the acute phase, sudden onset of fever, depression and anorexia. Diagnosis: positive serology or documentation of the presence of Ehrlichia morulae in lymphocytes or monocytes by cytology or PCR.

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