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Typical poliomyelitis has been produced in 4 chimpanzees by the intranasal, intragastric, and oral inoculation of untreated human stools. In 2 instances the olfactory portal was ruled out by section of both olfactory tracts.
Howe et al. (1940) studied this question. Intranasal, intragastric, and oral inoculation of untreated human stools produced typical poliomyelitis in 4 chimpanzees, including 2 instances where the olfactory portal was ruled out.
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