Dog killed a vole

Hello! Today, my dog killed a vole and I am wondering if there are any specific infections or symptoms I should be worried about?

He did not have the vole in his mouth more than maybe 5-10 seconds. He just grabbed it, but it’s head/neck and then dropped its dead body in the blink of an eye.

He has never killed anything before so it was super unexpected and spur of the moment. I live in the Pacific Northwest. My dog is up to date on all his vaccines however he has never had the lepto vaccines.

He has a regular vet appointment scheduled the end of next week, but I’m curious if I should try to get him in before then. I greatly appreciate any advice 🙏🙏