We have been over this and you refuse to discuss. Your refusal to look is not the same thing as there being no evidence. The only thing we have established beyond any doubt is that you refuse to look at any evidence.You should know by now that I haven't found any solid evidence that biological viruses exist. Therefore, the logical conclusion should be that I don't believe any biological viruses are involved in the polio epidemics.
The short answer is that there is no scientific reason for DDT to stop causing polio. Since polio outbreaks ended but DDT use did not, the correct scientific answer is that DDT could not be the cause of polio. Any other answer is pseudoscience since it ignores facts that are clearly in evidence.That's right.
The argument that I presented a while back, which wasn't even my theory, but Tessa Lena's (who herself came to that conclusion after reading from her own sources) is that DDT was probably -one- of the causes of polio. So in some cases, it could have been a cause, or the sole cause, and in other cases, it could have been something else. Because I have seen no solid evidence that biological viruses exist, that leaves other toxins, such as arsenic.
It's certainly a simple question. It's the answer that's hard. The short answer is I'm not sure. The longer answer: due to the evidence that other toxins, such as arsenic, look like they could also have caused polio, I suspect that DDT was not the sole cause of polio between 1940 and 1960, but may well have been the principal cause.
Bottom line, you are relying on pseudoscience.
Simple science and simple logic
hypothesis - If A is present then B occurs
observation - A is present for 18 years and B occurs then suddenly for 8 years A is present in higher concentrations and B doesn't occur.
Conclusion - the hypothesis is wrong.
Simply claiming you don't know is pseudoscience. Science requires you to discard or modify your original hypothesis since facts didn't show it to be correct.
DDT being present can't cause polio to occur since polio stopped occurring in 1963 but DDT wasn't banned until 1972. There MUST be some other cause than DDT. Any claim that DDT caused polio is illogical and falsified by facts of DDT not causing polio for 8 years.