translation.en: If one day, a person sick with the measles appears in this city, the disease will find much more resistance and won't be transmitted that much from person to person.
translation.zh: 如果有一天 一个患有麻疹的人来到这里 这个疾病的传播将遇到更大的阻力， 也不会在人和人之间传染得那么快