I think my puppy is over parvo help pleaseee?

well its been two weeks since the vet said my puppy had parvo..he looks 100% better he is up playing, eating, and drinking on his own (a lot hes a black lab) he looks like he was never sick at all..what im wondering is it normal for him to still be having diarrhea? i do not believe that he is sick any more he has been fine for a week now and he does not seem like he is going to relapse. is diarrhea after parvo normal?? please help