rabies and ectotherms

[grenard at mail1.new-york.net]

This question may be naive but is it possible for an ecotherm such as a
snake or lizard or frog to become infected with the rabies virus and/or
become a carrier of rabies as a result of being bitten (and surviving the 
trauma) by an infected  mammal? If not, I would appreciate a plausible
explanation for an indiviual who has asked this of me. Thank you.