Board Thread:Speculation, Theories, and Rumors/@comment-27741659-20160208234824/@comment-679780-20160811174523

Werehog was a coined term by the fandom that Sega adopted for the game. Wer- or Were- is old english for man, so the name "werehog" is actually rather inaccurate to what Sonic was in Unleashed, given dark gaia energy triggered a beast like transformation than made him half-human.

Another thing in common werewolf lore is that people turn into werewolves under the light of a full moon, but they will remain as normal humans throughout the other nights. It can be posible Dark Gaia Energy or very least those assosiated with Dark Gaia dissapates or retreats from sunlight, such as Dark Gaia minions being absent in day time stages or why Sonic reverts back into a hedgehog at day.

So it's unlikely that what causes the werehog transformation is contagious through biting as it is not regarded as a transmitted disease, but a triggered transformation from a foreign Life Energy from Dark Gaia.

If anything, it's more likely for Shadow and Silver to become Werehogs more than Amy, Tails or Knuckles since the Werehog transformation was drawn to Super Sonic, so the ability to super-transform maybe a neccesity to become a weremobian. While I do believe Super Tails and Super Knuckles is still a thing, Modern Sonic games have yet to bring them up so that makes them unlikely to be able to become a "Werechidna" or "Werefox".