1·Adjusting public perceptions to suit a far less lethal virus has been problematic.
调整公众对远没有那么致命病毒的看法一直是个问题。
2·After hatching, any pest larvae that have not been parasitised feed on the remains of their eggs and ingest the lethal virus.
这样，那些没有被寄生蜂寄食的虫卵的幼虫在孵化出来后，会食用自己卵的剩余部分，也吃下了那些致命的病毒。
3·The most lethal viruses tend to be short-lived because they kill their host before the virus has had a chance to be passed on.
致死力最强的病毒往往很短命，因为它们很快就杀死了宿主（被感染的人），从而失去了到处传播的机会。
4·The virus did not mutate during the pandemic to a more lethal form.
在大流行期间这一病毒没有突变为某种更致命的形式。
5·They infected all three strains of mice with lethal doses of influenza virus.
他们把这三株小鼠全部感染了致死剂量流感病毒。
6·The early indications are that the virus spreads easily, but is not especially lethal - at least outside Mexico.
一些早期的迹象表明，病毒很易传播，但是并不是非常致命，至少在墨西哥以外的国家是这样。
7·Even if early man could not see virus or bacteria, he was confronted with their lethal impact.
即使早期人类无法见到病毒或细菌，也面临着其致命影响。
8·Studies have detected no signs that the virus has mutated to a more virulent or lethal form.
经研究未发现迹象说明病毒已突变为更具毒性或更致命的形式。
9·We were expecting, and fearing, that the highly lethal H5N1 avian virus would spark the next pandemic.
我们预期，也担心高度致死性H5N1禽流感病毒将触发下一次大流行。
10·There is good reason to suspect the virus will become less lethal as it spreads.
我们有充分理由猜测，病毒在传播的过程中，其致命毒力逐渐减弱。