Is rabies more prevalent in third world countries?

Yes, from rabid dogs: Rabid dog bites are uncommon in the U.S.. Most of the rabies exposures here are from bats or other animals. In developing countries, there are many cases of rabies from dog bites.

Yes: For example, india has a huge population of feral dogs due to unfortunate garbage disposal practices and a reluctance to kill stray animals. Historically, thirty thousand citizens have died yearly as a result. Things are similar in many nations that are even poorer.

YES: These countries may have less access to the vaccine, and fewer pets are vaccinated against it.