Answer:
yes it was.
Step-by-step explanation:
it killed about 25 million people which is a third of Europe's population at the time and it was very difficult to get rid of, it stuck around for centuries in some cities, it was also very contagious it also took 3-5 days to show symptoms so when you were asymptomatic you were spreading it all over. it only ended because those who could left infested areas and those who couldnt stayed inside away from the public.