ensure yourself from being infected有什么语法错误？

Question

如题所述

Answer 1

语义和逻辑都是错误的，ensure正确的用法是ensure sb to do sth。这里应该改为：
Keep yourself from being infected.

Answer 2

比较中式，参考make sure that you are not to be infected.或：
ensure that you are safe and not to be infected.

Answer 3

没有错，很好。