Parvovirus mostly affects the some breeds like Rottweiler, Doberman Pinscher, German Shepherds, Pit Bulls, and Labrador Retrievers are at an increased risk for this disease. Apart from that, Toy Poodles and Cockers appear to be at a reduced risk for contracting this disease.
Be sure to keep your dog's vaccinations up to date.
And now, Let me try to answer your question one by one...
1.) Can this disease come to the pup if...his parents ever suffered from it??
I dont think so that it will transfer to pup if his mother had it. Because Parvo is transmitted by unvaccinated dogs coming into contact with infected dogs, infected stool (the virus is shed in stool) or an infected environment such as a kennel.
2.) how can i care my pup so that he again doesn't get infected to this or any other disease???
Just follow these steps...
Do not take the puppy to the front yard, park, for a walk around the block, or to pet stores. These are all places where infected dogs have been or presently are.
Only have the puppy around adult dogs that YOU KNOW are current on vaccinations. There should be no contact with stray dogs or dogs that you are not sure of.
Do not let the puppy be exposed to any other puppies. These pups could be incubating the disease (and therefore be contagious) without showing signs of illness.
4. Always wash your hands after handling any dog.
Notify the Doctor if the Following Occur
Your dog’s stool contains blood, or the diarrhea returns.
You cannot medicate your dog as instructed.
Your dog vomits or is reluctant to eat.
There is a change in your dog’s general health.
Your dog does not drink water.
3.) after how many months after he comes to my home i shld take him for a walk...after his vaccination gets completed??
After three months.. you can take for walk, but it would be better to take him after 4 months also and by that time make sure that all vaccinations should be done on time.
4.) what else best i can do to care for my pup....??
The very best thing you can do is please buy the puppy from reputed breeder, dont ever encourage brokers or puppy mills hereafter. Go for show quality instead of pet quality, because show quality costs you more and at the same time you can also get guarante from the breeder for first two lifeyears of the puppy for replacement.
5.) and we are veg...so is non-veg needed to give dogs??
Again its depend on the breeds, guarding breed must be given meat as a food. Non-Veg is neccessary as its the only source where your dog gets right protein. You can also give veg sometime, but atleast it should be given non veg twice a week.
All the best for your puppy and you...