Episodes
Tuesday Jun 26, 2018
Tuesday Jun 26, 2018
David Crowe discusses the reasons why polio, if you know the facts, is clearly not an infectious epidemic. There is a strong seasonality, matching the fruit harvest season. Very rarely were there multiple cases in one family. And the polio field trial of 1954 could have been changed from failure to success, or vice-versa, just by the misallocation of a handful of paralysis cases out of about 700,000 participants. The cause is probably careless use of pesticides, and DDT and other organochlorines were probably the cause of the 1952 epidemic that preceded the polio field trial, and the mass vaccination of Americans by several years. Lastly, there is AFP, Acute Flaccid Paralysis, but you will have to listen to find out about that.