There's quite a lot of debate over the precise origins of syphilis. I'm only peripherally familiar with the literature, but my understanding is that recent work suggests (but not concludes) that it might have been endemic to afroeurasia rather than or as well as the Americas. Lyme disease is indeed wholly American, but it's not epidemic or even particularly mortal.
I'm surprised that paper got published, considering the basic spelling errors ("jaws" for "yaws") and errors of fact ("Española Island…a part of the Galápagos Islands").
There are several islands in the world that have had the name Española. The one that is relevant to the discussion about syphilis is now more commonly known as Hispanola, home to Haiti and the Dominican Republic. Columbus visited in 1492/3 and supposedly brought back Syphilis in 1493. The Galapagos islands are in the Pacific, and were never visited by Columbus.
Ah, yeah that make sense. I just looked at the immediate sentence, rather than question which island it referred to. I'm assuming that's the cause for the error too - just someone wanting to reference location and popping the name into Google -, though it's certainly a much more serious error than the spelling mistake.