They should be considered as a potential source of introduction of an exoticdisease or parasite.
它们应当被认为是引进外国病或寄生虫的一种潜在来源。
2
If male, he is a younger son of a good family that in times past would have sent him to the colonies to make his fortune or contract an exoticdisease.
如果是一名男性，他是那种大户人家的次子，要在以前，早就把他送去殖民地，在那里发财，或者染上怪病。
3
The country is facing a serious deficit in disease surveillance and emergency preparedness, both crucial elements in fighting endemic and exotic animal diseases, FAO said.