herpes vs herpes simplex 1

herpes

noun
  • A viral infection, caused by Human alphaherpesvirus 1 and Human alphaherpesvirus 2, marked by painful, watery blisters in the skin or mucous membranes or on the genitals. 

herpes simplex 1

How often have the words herpes and herpes simplex 1 occurred in a corpus of books? (source: Google Ngram Viewer )