Im a little confused as to the age of the dog since it seems a little strange to have a puppy on a couch unattended to fall.  I have 10 weeks old babies right now and all the doggy steps are put up.  Maybe because I have tile floors, but a fall from a couch could be fatal.   
Anyway, I've heard of false weak negatives when test is done 1 to 2 weeks after vaccination.  I also have heard of precautionary antibiotics because the lining of the gastrointestinal tract is severely affected and the lining is sloughed leaving it open to infection; however, antibiotics can also cause vomiting and diarrhea which may add to a problem.  I also don't know if I agree with vaccinating a dog who might possibly have parvo.  In my opinion, I wouldn't want to overload an immune system that may be fighting a serious virus.  I am assuming this was a 16 week vaccination you gave and the previous one was at 12 weeks.  In a percentage of puppies, 3 to 5 days after the 12 week vaccine they have produced antibodies, but of course always do the next at 16 weeks just to make sure.  You don't mention total lack of appetite and not drinking and also the profuse bloody diarrhea so it is possible he doesn't have it.  Antibiotics definitely could cause nausea, vomiting and diarrhea and then if puppy wasn't eating every 8 hours maximum it could be a sugar problem.  It really doesn't sound like parvo to me since you didn't mention bloody diarrhea or total avoidance of food/water and also being fine one minute and not the next.  Hope he continues to do well.  Please post updates so others can gain from your experience.   
PS Hi Lacey s Mom - I had to do a double take cause I didn't remember posting. lol     |