I guess you're offline - hopefully you called the vet. Update when you can - I'm hoping for the best here!
Just wanted to add - for my Marcel (who was small), my vet gave only 1 shot per visit and was very firm on spacing them apart. Also, personally - I only get core vaccines for my dogs - meaning: rabies, distemper, parvo. ALL other vaccines are non-core and should be given only with great consideration and if the risk of disease truly outweighs the risk of the vaccine. I can't think of ANY reason this vet gave Corona - is this pup less than 8 weeks old?
Here is a vaccine guide:
http://www.critteradvocacy.org/Canin...0Guidlines.htm