However, recent outbreaks of measles and mumps emphasize the need for parents to remain vigilant in getting their children vaccinated.

但是，近来爆发的麻疹和腮腺炎再次强调了父母需要提高警惕，让孩子接种疫苗。

Along with smallpox, Americans were killed by measles and mumps, typhus, chicken pox, none of which they had been previously exposed to.

除了天花， 美国人还死于麻疹和腮腺炎、斑疹伤寒、水痘，而这些都是他们以前从未接触过的。