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TIME's The Brief TIMEnewsbrief

It May Be Possible To Prevent HIV

Natural immunity is the most reliable way to protect yourself from viruses, bacteria and parasites. And the best way to acquire such immunity, in most cases, is to expose your immune system to the bug in question—either by getting infected or getting immunized. http://goo.gl/niat7H More from The Brief: time.com/newsletter/the-brief/ #FullNewsAudioAvailable

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