Naw, other way around. Alexandre Yersin was credited as the discoverer after quite a bit of scientific squabbling. I believe that took place in 1967. When I was studying microbiology in the early 70's there were certain retrograde professors of mine who refused to go along. A Japanese scientist named Kitasato Shibasaburō was a rival claimant for primacy.
Nothing against the good Dr. Shibasaburo, but it *is* easier to say "Yersinia pestis" than it would be to say something like "Shibasaburoides pestis." Although had that ended up being the bug's name, we'd probably always just say "S. pestis."