We've eradicated smallpox, gotten measles, mumps, rubella, tetanus, whooping cough, all kinds of things under control.

我们已经根除天花， 麻疹、 腮腺炎、 风疹、破伤风、 百日咳， 各种疾病都得到了控制。

Febrile seizures can also develop after vaccinations that really stimulate the immune system, like the measles, mumps, rubella, varicella vaccine, but the frequency is quite low and the benefits of vaccination outweigh this risk.

热性惊厥也可能在接种了刺激免疫系统的疫苗后发生，比如接种了麻疹、腮腺炎、风疹、水痘疫苗等之后，但发生频率很低，而且接种疫苗的好处肯定是大于风险的。