Peer-reviewed veterinary case report
New tests for cryptococcal infection in dogs and cats
By Reagan, Krystle L et al.·Published in Journal of veterinary internal medicine·2019·Veterinary Medical Teaching Hospital, United States·View original on PubMed →
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Original publication title: Evaluation of the clinical performance of 2 point-of-care cryptococcal antigen tests in dogs and cats.
Plain-English summary
A study evaluated two quick tests for diagnosing cryptococcosis, a fungal infection, in dogs and cats. The tests were compared to a traditional lab test to see how accurately they could identify the infection. The first test, CrAg LFA, was very effective, correctly identifying 92% of positive cases and 93% of negative cases. The second test, CryptoPS, was slightly less accurate but still performed well. These quick tests could help veterinarians diagnose and treat this infection faster, improving outcomes for pets.
People also search for: dog cryptococcosis symptoms · cat fungal infection test · quick test for cryptococcosis in pets
Abstract
BACKGROUND: Point-of-care (POC) Cryptococcus antigen assays may provide veterinarians with a more rapid, patient-side diagnosis when compared with traditional laboratory-based latex agglutination tests. OBJECTIVE: To determine the sensitivity and specificity of 2 POC lateral flow cryptococcal serum antigen tests, CrAg LFA (Immy, Norman, OK) and the CryptoPS (Biosynex, Strasbourg, France) for diagnosis of cryptococcosis in dogs and cats, using the cryptococcal antigen latex agglutination system (CALAS) as the reference standard. ANIMALS: 102 serum samples from 51 dogs and 40 cats. METHODS: Specimens were classified as CALAS-positive (n = 25) or CALAS-negative (n = 77). The sensitivity and specificity of each POC assay was calculated by comparing the results to the serologic reference standard results. RESULTS: The CrAg LFA assay correctly classified 23/25 CALAS-positive specimens and 69/74 CALAS-negative specimens resulting in a sensitivity of 92.0% (confidence interval [CI], 75.0%-98.6%) and specificity of 93.2% (CI, 85.1%-97.1%). The CryptoPS assay correctly classified 8/10 tested CALAS-positive specimens and 56/59 tested CALAS-negative specimens resulting in a sensitivity of 80.0% (CI, 49.0%-96.5%) and specificity of 94.9% (CI, 86.1%-98.6%). CONCLUSION AND CLINICAL IMPORTANCE: The POC assays appear to be a sensitive and specific alternative to the traditional CALAS assay with more rapid turnaround times, which may result in earlier diagnosis and treatment.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/31468619/