Sorry to hear you are having a problem with your male pitbull puppy. I am glad to hear that you have dewormed both of them recently. Typically the deworming should take care of the intestinal parasites, though reinfection is possible.
Virus are an infection that can occur but are independent of intestinal parasites. The symptoms you describe could be an infection caused by a virus, bacteria, dietary indiscretion, foreign body, or parasites.
The best thing to do go to the veterinarian today so a complete examination is done. The veterinarian may recommend running a stool sample, blood work, and possibly radiographs.
Good luck and keep us posted.
hello i want to thank you for telling me i took the male dog to the vet he had a provovirus and he is treating like a champ but the vet told me i was lucky my dog could die from the virus and he had to take few medicines and stuff like that for 5 days and i never heard i had to get a ground hambuger beef and boil it and drain it out and boil the rice and drain it out and mix together little by little to see if he wont throw up but he is running around like crazy now and happy i was told by the vet he never got any check up lately after i bought the dog from the old owner from craiglist i want to let everyone to see my message {please take any pets to the vet}because it might be too late and cost alots of money to help your pets so i want to thank you for help guide me to the vet hehehehe so he is doing fine but one sad problem i wont feed him no food or water until 5 days so i guess he have to wait so thank you and i will keep you post it in the future bye from the pitbull lover, chao