mosquito vs plague

mosquito

noun
  • A small flying insect of the family Culicidae, the females of which bite humans and animals and suck blood, leaving an itching bump on the skin, and sometimes carrying diseases like malaria and yellow fever. 

verb
  • To fly close to the ground, seemingly without a course. 

plague

noun
  • An epidemic or pandemic caused by any pestilence, but specifically by the above disease. 

  • A group of common grackles. 

  • A widespread affliction, calamity or destructive influx, especially when seen as divine retribution. 

  • The bubonic plague, the pestilent disease caused by the virulent bacterium Yersinia pestis. 

  • A grave nuisance, whatever greatly irritates. 

verb
  • To harass, pester or annoy someone persistently or incessantly. 

  • To afflict with a disease or other calamity. 

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