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Input: "Current trends in HIV drug resistance are very concerning " said  Dr. Chris Beyrer   lead author of an overview on the state of global HIV drug resistance.
 Beyrer  is professor of epidemiology with the Johns Hopkins Bloomberg School of Public Health in Baltimore.
 He  and  his  colleagues noted that roughly 19.5 million HIV patients â or approximately half the global population of HIV patients â are now being treated with ART.
That will be "enormously difficult " said  Beyrer .
At the same time   Beyrer  said  those already infected but not yet treated should be given access to newer types of ART "cocktails " including drugs such as dolutegravir that have "higher genetic barriers to resistance."
Drug resistance may ultimately also pose a risk for PrEP  though for the time being  Beyrer  characterizes PrEP resistance as "very rare."

Experts concerned that HIV AIDS may be poised for a comeback