Of course not, and I cannot imagine who told you something as silly as that!
There are diseases parrots can be carrying, though it is not likely these days, and one of them is psittacosis--zoonoses to humans. Psittacosis presents as an upper respiratory infection with a very bad cough. It has to be treated with an antibiotic in the Tetracycline family as other ones won't work--I know I had a very bad case of it when working in a bird store with infected bird. The bird in question was a US raised baby Green Wing Macaw, so birds can and do contract this deadly disease in the US. I say deadly because if not diagnosed and treated properly it will kill humans and birds. It is passed to humans via small particles of feces or feces enriched bedding like newspapers, or other cage tray fillers. It is highly contageous and will wipe out entire flocks of birds wild and domestic like chickens. It was why birds had to be quaranteend back when parrots were still being imported to the US. New Castles disease is another one that was and is a terror to bird raisers and owners everywhere. I have seen the devastation it leaves in its wake and am pretty sure humans cannot get it as I was heavily exposed to it back in the old days.
So whoever told you that about MS was either joking or just did not know what they were talking about.
