Canada and the United States, the researchers successfully identified a virus that hide the cells, found the virus to evade the existing treatment of the "stealth" mechanism.

加拿大和美国的研究人员成功地识别出那些躲藏有病毒的细胞，找到了病毒可以逃避现有治疗的“隐身”机理。

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In that cause, over the years India successfully manoeuvred to evade or dilute international controls that would have hampered its secret weapons development.

ECONOMIST: India