They can slow the virus , but it vigorously copies itself , making mutant versions that dodge this critical immune response .
它们虽然可以减缓病毒的感染,但病毒仍会充满活力地复制,并形成突变体以逃避这种至关重要的免疫反应。
The researchers obtained blood stem cells , which are found in bone marrow , from three glioblastoma patients and inserted the gene coding for the mutant p140k into the cells .
The united nations is warning of a possible resurgence of the deadly bird flu virus , including a mutant strain that is spreading in asia and elsewhere .
联合国警告说,一种致命的禽流感病毒可能再次引发疫情,包括一个正在亚洲和其它地区蔓延的突变株。
Messing with the ribosomes inside a living cell can kill it , so church is going to make ribosomes self-assemble and function in a test tube . And then he 'll have to find mutant versions that will accept wrong-handed amino acids .
That study , describing another mutant bird flu strain that can also be spread through the air between ferrets , is under consideration at the us journal science .