A: Although the virus can mutate, we hope that there will be enough cross-protection through recognition of the new virus.
答：尽管病毒可能会变异，但我们希望，通过确认新病毒，将能提供足够的交叉保护。
2
It is certainty that cross-reactions exist between WNV and JEV, whether cross-protection exists between them need to determine with neutralization test.
WNV与JEV存在一定交叉反应，但是否有交叉保护作用则需要中和试验等进一步证实。
3
However, there seems to be some natural cross-protection going on with this virus: Though new to human immune systems, it doesn't seem to infect people over 60 very often.