mutated sars virus 变种的非典型肺炎病毒
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。
To date, no links between the small number of patients infected with the mutated virus have been found and the mutation does not appear to spread.
迄今为止，尚未发现少数感染变异病毒的患者之间有任何联系，变异病毒似未传播开来。
A 32-year-old man with cystic fibrosis is rushed to the hospital with appendicitis in the midst of a worsening pandemic caused by the H1N1 flu virus, which has mutated into a more deadly form.
H1N 1流感病毒逐渐蔓延，并迅速恶化为全国性的流行病。一个32岁的甲流患者不幸引发了阑尾炎并发症，他同时还患有囊肿性纤维化症。
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