Poor Bandit, and how sad for you to see your dog in this state after merely trying to protect him. I actually didn't know that Lyme disease affect animals. My cats used to get several deer ticks on them in my last house, which had a huge garden. I got bitten and needed strong antibiotics after developing the telltale 'bullseye' reaction on the site. Thank you very much for this warning, as people here in Norfolk (where Lyme disease is endemic due to the deer in Thetford forest and elsewhere) may be tempted to have this vaccine for their pets. I'll be telling my friends who have dogs not to go for it. Hope Bandit continues to improve, and your vet should at the very least refund all fees incurred.