I'm confused. I haven't responded to your post about vaccine trials yet. I was talking about polio.

I'm still trying to get through the link you sent about vaccine trials. There's a lot of information and I haven't had enough free time to digest it yet.

So, concerning polio: Without the vaccine in Africa there would have been over a million infected / crippled kids and deaths in the 6 figures. It's true a small number of children have now been infected but is that a bad thing when the new strain will presumably be dealt with as well?