recrudescence vs resurgence

recrudescence

noun
  • The condition or state being recrudescent; the condition of something (often undesirable) breaking out again, or re-emerging after temporary abatement or suppression. 

  • The production of a fresh shoot from a ripened spike. 

  • The acute recurrence of a disease, or its symptoms, after a period of improvement. 

resurgence

noun
  • An instance of something resurging; a renewal of vigor or vitality. 

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