Can you innoculate yourself for 'sexy'?

I read somewhere that (olfactory) attraction has something to do with differences in immune systems, namely the bigger the difference in immunological history between two people, the greater the attraction.

My question is this then: if that were to be true, then can you increase your ‘sexy’ by getting a bucket-load of inoculations? ;-)

(I know, I know, if you need to go to these lengths to get laid… <sigh> :P)

Discuss.