disease-free vs salutary

disease-free

adj
  • free of disease, not having, carrying, or suffering from any disease. 

salutary

adj
  • Promoting good health and physical well-being; wholesome; curative. 

  • Effecting or designed to effect an improvement; remedial: salutary advice. 

How often have the words disease-free and salutary occurred in a corpus of books? (source: Google Ngram Viewer )