Wikipedia uses this gif to show the spread of the black plague. Is it accurate? And if yes, what happened east of Cracow that stemmed the spread?

by Predicted

Gif in question

odysseyshot

Could you specify if you have any questions that this thread on the same gif does not answer? https://m.reddit.com/r/AskHistorians/comments/3mkaxu/in_this_wikipedia_gif_about_the_spread_of_the/