zipykido

I wouldn't call it a benefit unless you know that you'll need a kidney in the future. What it does is increases the net good a kidney donation does by bringing the cost of the donor up to zero essentially.

If he chooses to identify as a pokemon, who are we to stop him?

In the HIV space we're looking at interesting antibodies which can target highly glycan shielded regions of the virus. Producing enough protective flu antibodies to distribute to the same amount of people who get a flu vaccine is impossible though; so the approach would be a multivalent vaccine. However the problem isn't that we don't know where and what to target, it's mainly getting the human immune system to generate effective antibodies.