Evaluation of two rapid assays for detecting Cryptosporidium parvum in calf feces |
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| Authors: | Muccio Janna L Grooms Daniel L Mansfield Linda S Wise Annabel G Maes Roger K |
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| Institution: | Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA. |
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| Abstract: | OBJECTIVE: To evaluate 2 rapid, patient-side assays for detection of Cryptosporidium parvum in feces from neonatal calves with diarrhea. DESIGN: Diagnostic test evaluation Sample Population-Fecal samples from 96 neonatal (1 to 30 days old) calves with diarrhea. PROCEDURE: Results of the rapid assays were compared with results of microscopic examination of fecal smears that had been stained with diamant fuchsin stain. RESULTS: One of the rapid assays correctly identified 56 of 62 (90%) fecal samples positive for C. parvum oocysts and 33 of 34 (97%) fecal samples negative for oocysts. The other assay correctly identified 53 of 62 (85%) fecal samples positive for oocysts and 33 of 34 (97%) fecal samples negative for oocysts. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that these 2 rapid assays are accurate when used to detect C. parvum in fecal samples from neonatal calves with diarrhea. |
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