Cholera is an extremely virulent disease.
霍乱是一种致命性极强的疾病。
This virus was both lethal and virulent.
这种病毒不但致死率高，而且毒性极强。
This virus was both lethal and virulent.
这种致病的病毒尚待查明。
The virus did not mutate to a more virulent form.
病毒没有变异为致命性更强的形态。
The reason HIV is so virulent may have been found.
HIV的致命起因可能已获发现了。
Health experts are worried that a new, more virulent strain may be to blame.
卫生专家担心这一现象归咎于一种毒力更强的新菌种。
Finally FCT10.10 was selected as the highest virulent strain for production.
最终筛选出FCT10.10为诱变筛选出的高毒力菌株，可作为生产菌株。
If that evolution makes the virus more virulent, so much the worse for the host.
如果这种演变使得病毒毒性大增，寄主体质就会进一步遭到削弱。
It will become virulent and it's something we have to build resilience against.
情况会变得更加要命，建立弹性机制加以应对势在必行。
Several workers from the farm have fallen ill with the virulent new E. coli strain.
几个农场的员工也由于剧毒大肠杆菌而染病。
Fortunately, the strain was far less virulent than originally feared, killing about 19,000 people.
幸运的是，这种菌株的毒性远远小于人们原先所担心的，但也造成了约19,000人死亡。
Fortunately, the strain was far less virulent than originally feared, killing about 19,000 people.
幸运的是，这种菌株的毒性远远小于人们原先所担心的，但也造成了约19,000人死亡。
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