1.
Infected or contaminated with a contagious disease.
得了传染病的患有或被染上传染病的
2.
focus of infection
感染灶;疫源地;疫灶区;传染灶;传染中心
3.
become infected with(an illness)
感染上,传染上（疾病）
4.
free of weeds, contamination, pollution, etc
无杂草、 传染、 污染等.
5.
contaminated with infecting organisms.
被传染性微生物污染的。
6.
Cattle are immune to equine infections anemia.
牛不感染马传染性贫血。
7.
Infected with or contaminated by an epidemic disease.
染上瘟疫的患有传染病或被传染病污染的
8.
Likely to cause an epidemic disease.
会传染的，传染病的有可能引起传染病的
9.
Caused by or capable of being transmitted by infection.
传染性的能以传染方式扩散的，由传染引发的
10.
Period between being infected with a disease and the appearance of the first symptoms
（传染病的）潜伏期
11.
isolation to prevent the spread of infectious disease.
隔离防止传染病的传播。
12.
an incident is which an infectious disease is transmitted.
传染病被传播的事件。
13.
the transmission of electric power [disease]
电力的传送 [疾病的传染]
14.
Capable of causing infection.
传染的能够导致传染病的
15.
relating to or caused by infection.
关于传染病的或由传染病引起的。
16.
Person who may be infectious because he has recently been near to sb who has a contagious disease
（因接触传染病人）可能受到传染者
17.
" Colds are infectious, and so are some eye diseases."
＂感冒是传染的，有些眼病也是传染的。＂
18.
Infected plant material is a major means of introduction.
有传染病的植株是主要的传染媒介。