Parvovirus

My current 2 puppies were infected by parvovirus that may cause to sudden death when the virus attack the cells. It a virus that attacks the lining of the digestive system and causes dogs not be able to absorb nutrients or liquids. Puppies are especially prone to it because they have an immature immune system.
Past monday morning the female puppy suddenly lost of appetite when i feed her, followed by vomit before i went to exam. First i taught she was just has a minor sick but the next day morning the male puppy having the same symptom. So we bring them to the vet and the result came out positive on parvovirus. Right now both of them under treatment and the female puppy got improvement, can walk but still can't eat, however the opposite goes on the male puppy. His case quite serious where he is still fever and vomit, so just hope that both of them can cure and back to ours apartment.