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KMID : 0359320230630020002
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Korean Journal of Veterinary Research
2023 Volume.63 No. 2 p.2 ~ p.2
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Evaluation of commercial immunochromatography test kits for diagnosing canine parvovirus
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Hyeon Lee-Sang
Yang Dong-Kun
Kim Eun-Ju
Park Yu-Ri
Lee Hye-Jeong
Hyun Bang-Hun
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Abstract
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Rapid immunochromatography test (RICT) kits are commonly used for the diagnosis of canine parvovirus (CPV) because of their rapid turnaround time, simplicity, and ease of use. However, the potential for cross-reactivity and low sensitivity can yield false-positive or false-negative results. There are 4 genotypes of CPV. Therefore, evaluating the performance and reliability of RICT kits for CPV detection is essential to ensure accurate diagnosis for appropriate treatment. In this study, we evaluated the performance of commercial RICT kits in the diagnosis of all CPV genotypes. The cross-reactivity of 6 commercial RICT kits was evaluated using 8 dog-related viruses and 4 bacterial strains. The limit of detection (LOD) was measured for the 4 genotypes of CPV and feline panleukopenia virus. The tested kits showed no cross-reactivity with the 8 dog-related viruses or 4 bacteria. Most RICT kits showed strong positive results for CPV-2 variants (CPV-2a, CPV-2b, and CPV-2c). However, the 2 kits produced negative results for CPV-2 or CPV-2b at a titer of 105 FAID50/mL, which may result in inaccurate diagnoses. Therefore, some kits need to improve their LOD by increasing their binding efficiency to detect all CPV genotypes.
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KEYWORD
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canine parvovirus, diagnosis, limit of detection, genotype
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