These symptoms may be referable to virus infection rather than parasites.
这些症状也许是由病毒感染引起的，而与寄生虫无关。
The locals were encouraged to trap and kill mice to stop the spread of the virus.
当地人被鼓励用捕捉器捕杀老鼠以阻止病毒的传播。
This virus infected thousands of computers across the U.S. and Europe within days.
这种病毒几天之内就使美国和欧洲成千上万台电脑中毒。
The reason why the injection needs repeating every year is that the virus changes.
每年需要重新注射的原因是这病毒经常变化。
The test could be used to screen healthy people to see if they are carrying the virus.
这项测试可以用来检查健康人群，看他们是否携带该病毒。
It is very unnerving to find out that someone you see every day is carrying a potentially deadly virus.
发现你每天都见的人携带着可能致命的病毒让人不安。
The virus can actually destroy those white blood cells, leaving the body wide open to attack from other infections.
该病毒实际上能破坏那些白血球，使身体极易受到其他感染。
His estimate of half a million HIV-positive cases was based on an extrapolation of the known incidence of the virus.
他的50万HIV阳性病例的估计是基于对已知病毒发病率的推断。
In 1960 some polio vaccine was contaminated with the virus.
1960年，一些脊髓灰质炎疫苗被病毒污染。
The stripes of the Semper Augustus were caused by the genes of a virus.
“永远的奥古斯都”上的条纹是由一种病毒基因造成的。
They then found the same virus lurking in the genome of the three-toed sloth.
然后他们在三趾树懒的基因组中发现了同样的病毒。
A leading concern is that someone with AIDS virus might give blood to a blood centre.
最主要的担忧是，艾滋病毒携带者可能会向血液中心献血。
We will keep this policy under review as we learn more about the virus and its effects.
随着我们对这一病毒和其影响了解得更多，我们将继续审查这一政策。
In areas where the virus is widespread, most HAV infections occur during early childhood.
在病毒传播广泛的地区，大多数甲型肝炎感染发生在儿童早期。
Ever since the 1940s, vaccine makers have grown large batches of virus inside chicken eggs.
自20世纪40年代以来，疫苗制造商已经在鸡蛋中培养了大量的病毒。
Wild birds have caught the canary pox virus, and penguins have been stricken by avian malaria.
野生鸟类感染了金丝雀痘病毒，企鹅也感染了禽疟。
There is, however, a chance that the virus will infect the bilby, an endangered native marsupial.
然而，这种病毒有可能会感染兔耳袋狸，这是本土的一种濒危有袋类动物。
Once ingested by a caterpillar, the crystals dissolve, releasing the virus to infect the insect's cells.
一旦被毛虫摄入，晶体就会溶解，释放出病毒感染昆虫的细胞。
Researchers hypothesize that this vaccine was the source of the virus found in mesotheliomas decades later.
研究人员推测，这种疫苗就是几十年后在间皮瘤中发现的病毒的来源。
The virus is not killed so it's a live virus, which is actually going to infect your intestinal system and reproduce.
病毒没有被杀死，所以它是活病毒，它会感染你的肠道系统并繁殖。
The onus is on companies and consumers to keep up with anti-virus updates.
公司和用户有责任跟上杀毒软件的更新。
This virus was highly infectious.
这种病毒传染性很强。
HINI virus could spread among people.
H1N1 病毒可以人传人。
The virus was spreading to other trees.
病毒正传播到其他树木。
Fresh air can stop the virus from building up.
新鲜空气可以阻止病毒积聚。
Dad leaves 10 tips to help us fight the virus.
爸爸给我们留下了10个对付病毒的小窍门。
People failed to realize the danger of the virus.
人们没有意识到这种病毒的危险性。
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