What is Parvovirus and how is it deadly?

Saturdays are always busy here at El Cid. The 28th found the staff here helping carry in a young dog from their car, having received a phone call only minutes before informing us they were on their way. The dog was lethargic, not eating and had bloody diarrhea. Fearing the worst, Dr Garcia immediately went ahead and tested the dog for Parvovirus. Parvovirus attacks rapidly…