Anecdotal 'evidence' alert...
I definitely noticed the change in taste after I turned the corner with my fever on Weds/Thurs, after initially going down with fever on Sunday night (not having read anything about these effects or theories yet). I still noted the taste differences up to Sunday night - when what I hoped would be a cold post-viral beer tasted nasty and sour.
(Disclaimer as previous - I have no confirmation I actually had the disease, as I wasn't tested)
Mrs c00ps had a brief loss of taste/smell sensation for a day or so, with no other signs or symptoms.