is the bubonic plague a bacteria or virus
Bubonic plague Bubonic plague is one of three types of bacterial infection caused by Yersinia pestis.[1] One to seven days after exposure to the bacteria, flu like symptoms develop.[1] These include fever, headaches, and vomiting.[1] Swollen and painful lymph nodes occur in the area closest to where the bacteria entered the skin.[2] Occasionally the swollen lymph nodes may break open.[1]