At the Seoul first slaughter house, 2,964 heads of swine were examined for the infection and distribution of Cysticercus tenuicollis. The results were summarized as follows.
1. The Cysticercus tenuicollis were detected from 106 heads of swine and the infection rate were 3.58% percent.
2. Incidence at each province were 5.7% in Jeon-ra-puk Do, 4.4% in Chung-cheong-nom Do, 3.83 in Kyong-sang-nam Do, 3.57% in Jeon-ra-nom Do, 2.52% in Kang-won Do, 1.75% in Kyongsang-puk Do, and Kyong-gi Do and Seoul City were not recognized.
3. The monthly variation of the infection of Cysticercus tenuicollis were not found nearly through a year.
4. The usual habitat of Cysticercus tenuicollis were recognized the omentum and liver, but unusually one case was found around the rectum.
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