dontsayno徐贤音译:virus可数吗？

可数的.

virus 的意思是“病毒”，既可病理性病毒，也可指计算机病毒。它既可用作可数名词，指“一种病毒”；也可用作不可数名词，泛指一般意义的病毒。如以下用例均引自权威词书：
Beware of the computer virus. 当心计算机病毒。
Most viruses are spread over the Internet. 大多数病毒是在因特网上传播的。
There’s a / some virus going round the office. 办公室里流行着一种[某种]病毒性疾病。
Scientists have isolated the virus causing the epidemic. 科学家们已分离出引起这种流行病的病毒。
Eight million people globally are infected with the virus. 全世界有八百万人染上这种病毒。
The flu virus infected almost the entire class. 全班几乎人人都染上了流行性感冒病毒。
They determine what type of plants the virus can infect and which insects can carry the virus. 他们确定这种病毒可感染哪种植物以及哪种昆虫可携带这种病毒。
The principle of bottling is very simple. Food is put in jars, the jars and their contents are heated to a temperature which is maintained long enough to ensure that all bacteria, moulds and viruses are destroyed. 装瓶的原理很简单。把食物装在瓶内，把瓶子连同所盛的东西一起加热到某个温度，这温度维持足够时间，以保证所有细菌、霉菌及病毒全部杀死。

病毒---可数

Examples:
We should be watchful of computer viruses.
我们应该警惕计算机病毒。

可数
A computer virus

Unable to replicate without a host cell, viruses are typically not considered living organisms.

不可数