I'm not aware that leeches have any antibiotic or antiseptic factors in their saliva; I have heard, although I'm not aware of any evidence, that leeches do have an anesthetic factor - this is presumably due to the fact that we can't tell when we've been bitten. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.