Many noticed that survivors earned lifetime immunity from the disease.

许多人注意到，幸存者获得了对这种疾病的终身免疫力。

The ideal technology would be a vaccine that gives lifetime immunity with a single dose.

理想的技术是一种单剂即可提供终生免疫力的疫苗。

And so that does raise an issue on vaccinology, because you want to ideally have lifetime immunity.

因此，这确实引发了疫苗学问题，因为理想情况下， 你希望拥有终生免疫力。