glanders vs leprosarium

glanders

noun
  • An infectious disease of horses, mules and donkeys caused by the bacterium Burkholderia, one species of which may be transmitted to humans. 

leprosarium

noun
  • An isolated building or community used to house lepers, usually in permanent quarantine from the rest of society. 

How often have the words glanders and leprosarium occurred in a corpus of books? (source: Google Ngram Viewer )