Year: 2019 | Month: August | Volume 9 | Issue 4
Diagnosis of Cryptococcosis in Dogs by Latex Agglutination Test and Enzyme Immunoassay
Cryptococcus spp. is a pathogenic fungus which is an increasingly important cause of infection, particularly in the immunocompromised hosts. Diagnosis of cryptococcosis in animals can be carried out by isolation of the fungus but this requires several days to detect and identify the organism. Detection of cryptococcal antigen by latex agglutination test and enzyme immunoassay in serum is a rapid and easy method for diagnosis of cryptococcosis. In the present study, a total of 142 blood samples were collected from apparently healthy (n=89) and diseased dogs (n=53) for diagnosis of cryptococcosis. Latex agglutination test and enzyme immunosorbent assay (EIA) were carried out for the detection of cryptococcal antigen in serum. Of the 142 serum samples tested, six samples tested positive by Latex agglutination test while one sample tested positive by EIA. The sample which was positive by EIA was also positive by Latex agglutination test. The serum samples of dogs that tested positive for cryptococcal antigen were obtained from dogs suffering from symptoms like bloody faeces and vomit, emesis, chronic ear infection and discharge. Based on our findings, we conclude that the latex agglutination test in combination with the enzyme immunoassay can be used for the diagnosis of Cryptococcosis in dogs.
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