The type I am really hopeful about target the flagellum. The only portion of the human body to have this would be sperm cells. Backing up a bit, it's very har

The type I am really hopeful about target the flagellum. The only portion of the human body to have this would be sperm cells. Backing up a bit, it's very hard to target a medicine to something highly specific, since it circulates through the body, which re-uses proteins all over the place. This, though, represents a single target. It's a shame. Vasectomy can have complications which are often not discussed in the slightest. My father had some of those, though not as bad as others. Occasionally, the results are permanent, despite a reversal of the vasectomy. To paraphrase Orwell, imagine a boot stamping on a your balls—for ever. I am trying to remember the musician who killed himself over it.