Describe the features of bubonic plague.?

Thankfully, not sure. Best description I ever read was http://tinyurl.Com/4gvjk nobody I know has ever seen a "the plague" and historians argue whether we really know what caused the 14th century epidemic. We are taught it was caused by the bacteria Yersinia pestis. There is no proof, but good circumstantial evidence. Some argue modern Yersinia disease is different, but it probably evolved/mutated over 700+ years.