Masked infection

• 潜伏感染

Masked infection的用法和样例：

例句

1. But PRV has latent infection in pigs which carrys huge difficulty to eradicate it.
   而伪狂犬病病毒具有较强的潜伏感染性，从而给伪狂犬病的根除带来了相当大的困难。