The biggest challenge with treating HIV today is that the virus becomes dormant and often develops resistance to HIV drugs.
在今天，对付HIV最大的挑战就是它潜伏期很长，并且对治疗HIV的药物产生抗药性。
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Of course, a behavior is so popular, just like a virus epidemic, certainly with trigger mechanism or incentive. Then how "Ice Bucket Challenge" spread?
So the biggest challenge for researchers is how the virus is in "sleep" state while using the cocktail therapy to reduce the speed of viral replication.