接触传染性的的英文：
contagious

Transmissible gastroenteritis is a highly contagious, enteric disease of swine
传染性胃肠类是猪的一种高度接触传染性肠道疾病。

Fear can be contagious.
恐惧会感染他人。

Nothing is so contagious as enthusiasm.
热情是最富有感染力的。

The optimism of those Saturday afternoons was contagious
那些星期六下午出现的乐观精神具有感染性。

Love, happiness and tranquility are all contagious.
爱、幸福与宁静都是有感染力的。

Measles：(or rubeola)：Highly contagious viral childhood disease.
痲疹:由滤过性毒菌引起的、高度传染的小儿疾病。