Kipling was paying tribute to the Vicereine who established the Fund associated with her name. This was an organisation which employed medical women (or 'lady doctors') to run a chain of hospitals and dispensaries all over India and Burma.

While the world's major killer disease, smallpox, that used to claim millions of lives has been eliminated, the planet has been struck with a more dreaded disease, AIDS or Acquired Immuno Deficiency Syndrome.