Why did polio become lethal since the 1880s? – Part 3
7. Theory 3: DDT Pesticides Similarly to arsenic, the DDT theory has two variants: direct and indirect. The DDT theory traces back to a 1953 paper by Morton Biskind, Public Health Aspects of the New Insecticides, in which he linked polio to the increased use of DDT. “In the Philippines and elsewhere in the Far…