If he is up to date with his lepto then he should be fine
Some people dont get the lepto for terriers after they have been ratting regular. The inj only covers a few of the many strains and the terriers should build up enough immunity from regular contact.
There are no other injections needed, take some antiseptic wipes for your hands though, helps to prevent you putting dirty hands on the steering wheel, dogs lead etc. Keep dog away from young children for a while afterwards. And NEVER pick a rat up by its tail.
MOLL.
<{POST_SNAPBACK}>
even with disposable gloves