A survey of intestinal parasites was performed during the period from April 1970 to December 1971 in ROKA (Republic of Korea Army) soldiers. Samples were collected from 591 Army troops(enlisted men), 1,755 recruits at completion of 6 weeks basic training, 304 recruits during basic training and 245 stool specimens of students of ROKA Nursing School at Taegu area. Each of the specimens was examined one time or twice under the microscope, one for protozoan cysts stained with iodine solution and the other for helminth eggs.
Findings were summerized as follows: A positive rate of intestinal parasites was 88.0 percent by Formalin-Ether concentration method and 89.2 percent by Kato's method. Of the 541 soldiers examined by Formalin-Ether concentration method, the infection rate of A. lumbricoides was 28.1 percent, T. trichiurus 79.3 percent, hookworm 14.2 percent, T. orientalis 30.7 percent, C. sinensis 7.8 percent and M.
yokogawai 0.6 percent. Of the 1,532 soldiers examined by Kato's method A. lumbricoides showed positive rate of 45.8 percent, T. trichiurus 78.3 percent, T. orientalis 1 4.5 percent, hookworm 7.5 percent, C. sinensis 6.6 percent and Taenia sp. 0.6 percent. The incidence of E. vermicularis out of 822 samples was 19.8 percent from the anal swabs. E.
histolytica was recovered in 4.2 percent among 541 samples, E. coli 6.1 percent and also infected G. lamblia, E. nana, I. butschlii and Chilomastix mesnili. Most of the infected cases revealed single or double infections.
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This study was undertaken in order to elucidate the prevalences of the intestinal protozoan infection according to localities and the mode of the infestation in the mountainous area of Chollapuk-do, Korea during the year 1970-1971. 8,508 of fecal samples were collected among the inhabitants of the mountainous area, which covered 18 Myens(=Township) from 6 Guns(=County) in the eastern part of Chollapuk-do. Most of the inhabitants of this area were engaged in farming and living under lower economic and poor sanitary conditions. The samples were examined twice repeatedly by iodine stained direct fecal smear method. For the study on the mode of infestation, with the exception of drinking water, the zinc sulfate floatation technic was applied for the examinations of hog-feces, manure heap, garden soil, sewage, dishtowel, dust in room and floor, house fly and house rat. The results were summarized as follows: Among total 8,508 fecal specimens examined, 3,152(37.6 percent) were positive for the intestinal protozoa: E. histolytica 9.8 percent, E. coli 25.6 percent, E. nana 7.2 percent, G lamblia 6.8 percent, I. butschlii 0.6 percent, and C. mensnili 0.7 percent. A single infection of the intestinal protozoa was the highest(68.3 percent), and double infection(22.3 percent) triple, quadruple and quintuple infections were in decreasing order. The highest distribution (39.8 percent) was observed in the group aging 41-50, and the lowest (27.3 percent) in the group above 61.
The groups under 10 years showed a relatively high positive rate among all age groups. Sexual distribution of protozoan infection showed slightly higher rate (38.6 percent) in male than that (35.4 percent) of female. Jangsoo-gun showed the highest positive rate (42.9 percent) and Namwon-gun was the lowest (32.5 percent). The prevalence of E. histolytica showed the highest (11.6 percent) in Imsil-gun and the lowest (6.9 percent) in Jangsoo-gun. E. histolytica cysts were found 9.1 percent among total 99 samples of hog feces, 4.8 percent among 78 samples of manure heap, 0.6 percent among 164 samples of fingernail dirt, 5.3 percent among 57 samples of drinking water, 15.8 percent among 19 samples of sewage, 7.1 percent among 42 samples of dishtowel, 0.1 percent among 780 samples of house fly and 5.0 percent among 40 samples of house rat.
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The purpose of the present study is to demonstrate the distribution of carbonic anhydrase pattern in the various termatodes (Fasciola gigantica, Paramphistoma orthocoelium, Paragonimus westermani) by means of Kurada staining method, and to correlate these findings with the histochemical data and harboring location. The results are summarized as follows: In Fasciloa gigantica, carbonic anhydrase activity was positive in the vitelline gland cells and eggs in the uterus. In Paramphistoma orthocoelium, carbonic anhydrase activity was positive in the vitelline gland cells and eggs in the uterus. In Paragonimus westermani, carbonic anhydrase activity was positive in intestinal mucous membrane, vitelline gland cells and eggs.
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The present studies were done to determine the prevalence of Paramphistoma in Korean cattle. Material have been collected by authors at the slaughter house of Pusan in Korea from February to July of 1966. The fixing solution used were 10 percent formaline, Carnoy-solution, Zinker and Bouin solution for total worm body preparation. The staining was done with acetocarmine and Delafild's Hematoxylin for total preparation and double Hematoxylin-Eosin staining for microscopical section slides. The following results were obtained: The authors have identified six species of Amphistoma from Korean cattle, and these are Paramphistoma orthocoelium, P. cervi, P. explanatum, P. gotoi, Gastrothylax elongatus and Gastrothylax cobblodi. The prevalence status is as follow: Paramphistoma orthoceolium and Gastrothylax elongatus are very common and Paramphistoma cervi, Paramphistoma explanatum are rather common, but Paramphistoma gotoi and Gastrothylax cobblodi are very rare in Korean cattle.
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