virus

• The recovery of embedded viruses remains to be demonstrated .
  对被包埋病毒的回收仍留待证明。
• Enteric viruses are able to enter in the body via the oral route .
  肠道病毒是经口进入人体的。
• Virus or bacteria infections of the alveoli result in pneumonia .
  病毒或细菌感染肺泡引起肺炎。
• A virus is negatively charged above its isoelectric point .
  病毒在它的等电离点以上时带负电荷。
• The virus may persist in the inoculation site for several days .
  这种病毒可留在接种部位达数天。
• 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。
• In some viruses the nucleocapsid is surrounded by an envelope .
  某些病毒的核衣壳是由被膜所包绕。
• Bacteria may be infected with viruses called bacteriophages .
  有一种称为噬菌体的病毒可以感染细菌。
• Spontaneous and induced mutation occur with animals viruses .
  动物病毒的突变有自发突变和诱发突变。
• This insect attacks the raspberry crop and transmits virus disease .
  这种蚜虫危害树莓并传播病毒病。