antibiotic vs contaminated

antibiotic

adj
  • Of or relating to antibiotics. 

noun
  • Any substance that can destroy or inhibit the growth of bacteria and similar microorganisms, generally transported by the lymphatic system. 

contaminated

adj
  • adulterated; impure 

  • made unfit for use by the introduction of unwholesome or undesirable elements. 

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