ArticleJournal of fish diseases2026
One-Pot RAA-CRISPR/Cas12a Assay for Rapid Detection of Infectious Hypodermal and Haematopoietic Necrosis Virus (IHHNV) in Shrimp Aquaculture.
Article in Journal of fish diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The infectious hypodermal and haematopoietic necrosis virus (IHHNV) represents a significant viral threat to global shrimp aquaculture, leading to considerable economic losses. In this study, we have developed a one-step, one-pot isothermal assay for the detection of IHHNV, employing recombinase-aided amplification in conjunction with clustered regularly interspaced short palindromic repeats-Cas12a (RAA-CRISPR/Cas12a). The assay is performed at a constant temperature of 37°C, achieving a detection limit of 10 copies per reaction for the fluorescence assay and 1 copy per reaction for the lateral flow dipstick (LFD) assay within a 60-min timeframe. Additionally, we evaluated the assay against four other prevalent shrimp pathogens (WSSV, DIV1, EHP, VpAHPND) and observed no cross-reactivity. This straightforward detection method exhibits high sensitivity and specificity for IHHNV, offering a promising approach for early and rapid field diagnosis.
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