(virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
a harmful or corrupting agency
a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer
造句
用作名詞(n.)
Some viruses incubate very rapidly. 有些病毒繁殖得很迅速。
The transfer of pig viruses to humans is unlikely. 此療法導(dǎo)致感染豬病毒的機率極小。