Ferritin protein inhibits WSSV replication. Shrimp was injected with ferritin (Ft)
or GST 1 day before WSSV challenge. The challenge test was conducted on day 2 by
injecting 104 WSSV copies suspension intramuscularly with GST or GST-ferritin. Then
the shrimp from each treatment was subjected to quantitative real-time PCR to
quantify WSSV copies 48 h post infection. Values are the mean, and experiments were
performed in triplicate. The statistically differences between interested treatments
were represented with star (**P < 0.01)