1887

Infectious and parasitic diseases

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Abstract

PLEASE NOTE THAT A MORE RECENT EDITION OF THIS TITLE IS AVAILABLE IN THE LIBRARY

Vomiting and diarrhoea in dogs and cats are two of the most common maladies facing the small animal practitioner today, and bacterial, viral and parasitic enteropathogens play an important role in many of these cases. Dogs and cats harbouring intestinal parasites or even bacterial pathogens can remain asymptomatic, but may develop clinical signs ranging in severity from a mild, selflimiting diarrhoea, to a potentially fatal acute haemorrhagic diarrhoeal syndrome. Evaluation of the animal's history and physical examination are integral to formulating an appropriate list of differential diagnoses ranking the most likely infectious agents involved. This chapter explains Faecal examination; Intestinal parasites; Enteropathogenic bacteria; Viral infections; and Intestinal fungal infections.

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Figures

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16.1 Identification of protozoan cysts and worm eggs that may be found in the faeces of dogs and cats. (Courtesy of Hoechst-Roussel-Agri Vet Company, USA; permission requested)
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16.2 Stained faecal smear showing characteristic appearance of with its long undulating membrane.
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16.3 Centrifuge with free swinging buckets showing a coverslip in place before centrifugation.
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16.4 Zinc sulphate flotation showing .
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16.5 Faecal smear showing a single acid-fast stained oocyst in a diarrhoeic cat.
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16.6 Direct fluorescent antibody assay showing fluorescent cysts (larger, oval) and oocysts (smaller, round).
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16.7 Faecal flotation showing ova (darker appearing biperculate ova) and ova.
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