1. 毒力：2)毒力(virulence) 毒力由毒素和其他毒力因子所组成. 毒素包括外毒素(exotoxin)与内毒素(endotoxin). 前者以白喉、破伤风和肠毒素为代表. 后者以革兰阴性杆菌的脂多糖为代表
2. 毒性：致病性从其变异或分化来看,可分解为两大组分:毒性(Virulence)和侵袭力(aggressiveness). 毒性(也有人译作毒力)是指病原物克服寄主某一专化抗病性而能够侵染,使之感病的能力,是质量性状,它是专化于品种的,它只能克服某一定抗病基因,
3. 毒性,毒力：virucidin 病毒中和抗体 | virulence 毒性;毒力 | virulence test 毒力试验;毒性试验
4. 有毒：virtuousness 贞德 | virulence 有毒 | virulency 痛恨
1. 恶毒;狠毒;敌意
Virulence is great bitterness and hostility.
e.g. The virulence of the café owner's anger had appalled her.
咖啡店老板怒气冲天，充满敌意，把她吓坏了。
2. 毒力;毒性;致命性
The virulence of a disease or poison is its ability to harm or kill people or animals.
e.g. Medical authorities were baffled, both as to its causes and its virulence.
医疗当局对其病因及有多致命都还不甚了解。
1. " It shows the increasing virulence of avian influenza, " he said.
2. She and her husband were told they are both carriers of the virulence gene.
3. The ministry said that the virus " may be of attenuated virulence " as the infected birds are still alive.