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Comparison of protective effects between WSSV hub and nonhub genes. dsRNAs were prepared from WSSV hub genes (WSSV051 and WSSV517) and a nonhub gene (WSSV050). Two dosages of each dsRNA (1 μg and 5 μg dsRNA per g BW) were used for injection to P. vannamei 2 days before WSSV challenge. Control group was injected with NaCl solution followed by WSSV challenge. Shrimp mortality was recorded for 17 days after WSSV injection.
