So What’s the State of AC/DC Rhythm Guitarist Malcolm Young?

Part of the source code for the rumours surrounding AC/DC’s imminent retirement–rumours the band has denied–involves the health of rhythm guitarist Malcolm Young.  He and his family have moved back to Australia amid tales of ill health.

Multiple sources have been quoted as saying that Malcolm, whatever his affliction, is “too ill to ever perform again.” (The NME is one such source.)

But what, exactly, is wrong with Malcolm?  No one is saying, but there are stories of Malcolm having suffered a stroke. If not that, then something extremely debilitating.

A Facebook post confirms that he will be taking a leave of absence but stops short of explaining what’s going on.