A week ago I bought a Mastiff puppy.Saturday she went to the emerg vet for watery poop amd vomiting.Vet said she was ok and gave me some pills.Last night she started pooping blood so emerg vet again.The vet said she was too far gone and put her to sleep.Said this is the worst case of Parvo he has seen in 10 years.I am still balling.She was such a sweetie.I am out $1800 and my heart is gone.