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Report of a Watermelon mosaic potyvirus Strain in Kentucky Undetected by ELISA

P. Vincelli and K. Seebold

March 2009


These results indicate that a strain of WMV is present in Kentucky which does not react to a widely used assay for detection of this economically important virus. Prior to this report, it has been unknown whether the recent, widespread occurrence of PVG-positive/CVS-negative cucurbit samples was due to a new variant of a previously recognized potyvirus or a new potyvirus. This report identifies the causal agent for at least some of these anomalous cases.


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