The Amiga ran as a collection of co-processors, instead of today's "streamlined" PCs "Central Processing" method. Yes, there was a main "logic" co-processor, which is the closest match to a modern CPU, but there were others working at the same time. That has little to do with how the virus works, suffice to say that the damage the virus does is irreversible. The way it's written allows it to be detected (even then you have to be immaculately meticulous), but when it "senses" detection, it duplicates itself. Think of a book that reprints itself one hundred times every time someone looks at the cover. One can remove it temporarily from places like RAM buy turning off power and removing the button battery for a certain amount of time and allowing the capacitors to discharge, but when you turn the computer back on and start using infected sectors, it starts infecting RAM sectors again. Even reformatting couldn't get it out, since while the system was busy running the reformat, a full copy of the virus was residing in the RAM, where it would pop back into the HD. Anything short of zapping the HD with a cardiac defibrillator wouldn't permanently get rid of it.

Since Commodore had already gone bankrupt a few years before this happened to me, it was decided it would be easier to just get a PC. I thought about getting a Mac, but for some odd reason, my dad threatened me with disowning if I did (slight hyperbole, but not much). I never asked why and I never cared to.

@Darling_Jimmy
So far, all I've seen in the newer versions of AF are better WinUAE configurations and more up-to-date versions of Kickstart ROMS and Workbench ADFs. If you want games, the best way to go is to download the most complete version of TOSEC's Amiga collection. It's ~25GB, and there are multiple copies of multiple games, but that's in case one version cracked by one group works better for you than another, and some copies have built-in trainers and the like.