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| | Pesticides and Polio |
 | | The problem is still difficult, especially when viruses are considered as causative of chronic diseases (including several of the hepatitides), neoplastic diseases, and slowly progressive neurological diseases. |
 | | Yet, far from admitting a causal relationship [for polio and other diseases] so obvious that in any other field of biology it would be instantly accepted, virtually the entire apparatus of communication, lay and scientific alike, has been devoted to denying, concealing, suppressing, distorting and attempts to convert into its opposite, the overwhelming evidence. |
 | | Needless to say, the charge that DDT predisposed to poliomyelitis was dropped after the disease was controlled through the use of vaccines. |
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