I'm confused why would you want the cured status wouldn't that just make it impossible to get the virus? The doubling of evs only occurs if the poke has the virus it disappears once it's cured
Yes, you certainly are confused.
If a Pokemon is non-contagious (or "cured" as most people say) then it will still get double the EVs from battle, but will not be able to pass Pokerus to others. Whether the Pokerus is contagious or not, it still doubles EVs. --- THAT'S MISS HOME ROWED TO YOU http://i.imgur.com/a95OQPq.gif