Alpha vs Α strain

Alpha

name
  • A ghost town in California, United States (USA). 

  • A village in Michigan, United States. 

  • A town in Queensland, Australia. 

  • A village in Illinois, United States. 

  • A borough of New Jersey, United States. 

  • Former name of the International Space Station. 

  • A RISC CPU instruction set architecture developed and marketed by Digital Equipment Corporation (then later by Compaq and then Hewlett-Packard) from 1992 until 2004. 

  • A city and village in Minnesota, United States 

Α strain

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