Here's an article from the Times of Israel which discusses ways in which the video by Suzanne Humphries posted up thread is offering bad advice about polio in Israel:
I post a couple of snippets with some of the errors/factual inaccuracies which are present below for people not wanting to visit the link and read.
"Dr. Humphries claimed polio epidemics were caused by widespread use of DDT, ignoring both the New York epidemic of 1916 ,which preceded widespread use of DDT, and the fact that the claim has been thoroughly debunked"
It seems she also wrote a blog post to discourage Israeli parents from allowing their children to get OPV. This article also claims that that has many problematic bits of advice. For example:
"Dr. Humphries’ post is filled with misleading information and unsupported claims. For example, she overstates the risk from the vaccine virus compared to the wild virus"
"In her analysis Dr. Humphries makes unfounded claims and substantial errors, and resorts to conspiracy theory claims without any evidence behind them."
Thought it might be helpful to some to see the other side of the argument on that.