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But to return to those preventive measures, and having done what we can with the air, we will turn our attention to the drinking water, for in addition to malarial microbes the drinking and washing water of West Africa is liable to contain dermazoic and entozoic organisms, and if you don't take care you will get from it into your anatomy Tinea versicolor, Tinea decalvans, Tinea circinata, Tinea sycosis, Tinea favosa, or some other member of that wretched family, let alone being nearly certain to import Trichocephalus dispar, Ascaris lumbricoides, Oxyuris vermicularis, and eight varieties of nematodes, each of them with an awful name of its own, and unpleasant consequences to you, and, lastly, a peculiar abomination, a Filaria.
Mitra speaks of the passage of round-worms through the umbilicus of an adult; and there is a case mentioned in which round-worms about seven inches long were voided from the navel of a young child. Borgeois speaks of a lumbricoid worm found in the biliary passages, and another in the air passages. Turnbull has recorded two cases of perforation of the tympanic membrane from lumbricoides.