Yeah, it does look more like yeast than an infection....based upon your pics.
It's infected with US-05!
Photographing glass is an art form, and the flash doesn't help...static lights are bad enough.To me it doesn't look like yeast (although I'm not completely disagreeing with you). It seems too white and glossy. I can't seem to get a perfect picture since the room is sort of dark and the carboy clashes with the camera flash.
But from the pics provided, it does look like yeast. You can get some gloss from hop oils. The only thing that looks a tad off is the triangular spike in the lower left, but maybe because I haven't had that shape yet.
Wheres the infection? I see nothing but yeast rafts floating on the beer.
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