Yes kennel cough can be caused by the vaccine, which is largely ineffective any way....and usually a vet will prescribe antiboitic to ward off it developing into pneumonia. The fever probably caused him to become dehydrated and that's lead to his weight loss.
Sending prayers he gets better soon.
__________________ Deb, Reese, Reggie, Frazier, Libby, Sidney, & Bodie |