Upending the dogma of TB latency: Will it offer new clues for vaccine research?

There are many reasons why HIV is such a perplexing virus to combat. One of them is that there are incredibly few people — only a few, if that, of the nearly 86 million people to acquire HIV to date — who have naturally cleared the virus after becoming infected. Once an HIV infection occurs, it almost always persists in the body for a lifetime.