Bo Needs A Little Help...

We just got this puppy a little under a month ago. He is 4 months old and his name is Bo. Yesterday (Nov 24) bo started acting unlike his usual hyperactive self. We started to think it was maybe him being upset because he got in trouble earlier that day but then he stopped eating and started getting sick... 4 hours after his initial symptoms started to get worse we decided to bring him into a 24 hour emergency vet. since it was midnight already and he was getting worse, we couldn't wait until the next day to do something. Bo has been diagnosed with Parvovirus... My girlfriend and I are the only people that this puppy can depend on right now and we are unable to do this by ourself.... We just need a little help...