• The Journal of the Korean life insurance medical association
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• v.1 no.1
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• pp.133-139
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• 1984

In the 2,218 healthy cases-male 1,574 female 644-who were conducted serum examination from May 1st 1983 to November 1st 1983 by the medical selection of Dae Han Kyouk life insurance Co., the results which investigated the HBsAg by using the Reverse Passive Hemagglutination(RPHA) method are as follows; 1. The number of 167 from 2,218 cases proved to be positive, showing 7.52%, the number of 143 from 1,574 male positive, showing 9.08%, and the number 24 from 644 female positive, showing 3.73%. The positive rate of the male was indicated by 5.36% higher than that of the female as the former marked 2.4 times higher distribution than the latter. 2) The positive rate by the type of occupations appears as follows; The highest positive rate group is that of discharger from military service in 1983, the number of 70 from 736 persons marking 9.51% and the next is the merchant 8.79%(8/91), employee of a company markes 8.53%(44/516), high school boy 7.69%(19/247), house wife 5.71%(10/210), carrier woman 3.45%(10/290) and the group of the high school girl records the minimum rate of all, 3.13%(4/128). 3. The positive rate by the age group appears as follows; The highest rate group is that of 31 to 35 years, marking 9.80% positive rate, and the next is $26{\sim}30$(9.3%), $21{\sim}25$(8.01%), $41{\sim}45$(6.96%), $36{\sim}40$(6.9%), those below 20(5.99%), 46 to 50 years shows the minimum rate of all(2.94%) Among the male case, 26 to 30 years shows the highest positive rate by 10.59% and female, 31 to 35 years shows the highest rate by 7.89%. 4. The positive rate by the blood type represents as follows; Blood type A shows 7.30%, type B 7.17%, type O 6.11% and type AB indicates 5.88% in order.

• Korean Journal of Veterinary Service
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• v.20 no.1
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• pp.1-9
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• 1997

The 37,000 holstein which had been raised in Jeju island were examined for the purpose of brucellosis detection and so on. We investigated the relationship between the farms showing positive outbreak and the number of examination, incubation period, and the outbreak rate of positive cattle. We endeavored to separate germs from brucellosis positive cattles blood and negative bulls semen against brucellosis serum test and concluded as follows. We intend to offer you institutional supplements and preventions of brucellosis for the future. 1. Outbreak of brucellosis could not lead the outbreak rate of positive cattle to decrease through 1-2 examination per year, For the past 4 years, the outbreak rate of brucellosis positive cattle had a tendency to show a gradual decrease through at least 5 examinations per year. 2. As we examined live-in cattle with positive cattle in mass outbreak farms for 9 months, we found out positive cattle every month. In a grazing land, the group of cattle producd enormous positive cattle in 9-12 months. 3. Annual brucellosis positive outbreak rate was 20-25% among live-in cattle with brucellosis positive cattle, but the rate might be 50-100% depending on extent of pollution. 4. 94's brucellosis examination showed that 200 positive cattle of 71,153 cattle and most of them were live-in cattle with confirmed brucellosis positive cattle. 5. 1 head of 200 positive cattle showed positivity against serum of bulls test and the rate of bulls was about 1%. 6. Brucellosis germ was separated from 2 cattle's semen among 52 negative bulls against brucellosis serum test and there was the one brucellosis positive cattle against tube agglutination of semen test, so the positive rate of brucellosis was 5.8%. 7. Brucellosis germ was not separated from 15 brucellosis positive cattle's blood.

• Parasites, Hosts and Diseases
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• v.39 no.4
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• pp.323-325
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• 2001

The egg Positive rate of Enterobius vermicularis and Clonorchis sinensis of school children in the rural area was studied in Hamyang-gun, Gyeongsangnam-do in Korea. Cellotape anal swab and formalin ether concentration methods were performed one time to 720 Primary school children. The total egg Positive rate of E. vermicularis was 12.6% in two schools (Baekjeon and Wiseong). In the Baekjeon and Wiseong primary school, the egg Positive rate of E. vermicularis was 4.6% and 13.4%, respectively Pinworm egg Positive rate was 17.6% in the lower grades (1st, 2nd and 3rd), and 7.7% in higher grades (4th, 5th and 6th). The total egg Positive rate of male and female was 12.6% and 12.7%, respectively. The egg Positive rate of C. sinensis of Baekjeon and Wiseong Primary school was 1.5% and 0.46%, respectively The total e99 Positive rate of C. sinesis was 0.56%. This survey showed that continuous education and chemotherapy is necessary to treat and prevent reinfection of E. vermicularis. In the case of C. sinensis, health education for school children is recommended to prevent potential infection of adolescents.

• Parasites, Hosts and Diseases
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• v.41 no.1
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• pp.75-77
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• 2003

The status of Pinworm (Enterobius vermicularis) egg positive rate of Primary school children in Geoje island was investigated by using adhesive cellotape anal swap method, in September, 2002. Total egg positive rates of E. vermicularis were 9.8% (74/754) and those of male and female were 10.8% and 8.7%, respectively. Among three schools examined, Myeongsa primary school showed the highest egg positive rate (12.6%) followed by Yeoncho [9.8% (26/266)] and Geoje［9.1% (35/385)]. As for the age groups, the 2nd grade had the highest egg positive rate (15.3%), whereas the 5th grade showed the lowest egg positive rate (2.6%). The above result led us to confirm that the egg positive rates of E. vermicularis in primary school children in Geoje island were not significantly different from the those in the whole country including urban and rural areas, showing more than 10%.

• Parasites, Hosts and Diseases
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• v.38 no.4
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• pp.279-281
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• 2000

Pre-school children were examined for the presence of Enterobius vermicularis egg by perianal swab method. We visited 67 nurseries and 25 kindergartens between January, 1999 and April, 1999 in Chunchon, Korea. Of the 4,711 children examined, 434 (9.2%) were found to be positive for E. vermicularis egg. The egg positive rates of boys and girls were 10.1% and 8.1%, respectively. The rates were 7.8% in kindergartens and 9.7% in nurseries. Positive rate of 50 institutions was less than 10%. Rate in 35 institutions was from 10% to less than 20%. Rate in 7 institutions was equal to or over 20%. Out of 1,113 children examined twice, 28 (2.5%) children were positive consecutively, 53 (4.8%) were positive with negative conversion, 47 (4.2%) were negative with positive conversion, and 985 (88.5%) were consecutively negative. It means that in the low endemic area of enterobiasis with around 10% positive rate, the two consecutive examinations may increase the egg detection rate of 4.2-4.8%. The small number of consecutive egg positive children also suggests that the worm burden of the positive children might be low. Since the egg positive rate of that a9e group in this City increased from 1.85% (1997), and 3.0% (1998), the more intensive regular control should be executed.

• Journal of Korean Public Health Nursing
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• v.13 no.1
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• pp.88-96
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• 1999

This study was conducted in May of 1996 to December of 1996 in order to investigate the status of rubella antibodies in the women of childbearing age. The subjects were 543 fertile women (Ages 21-42 years). ELISA method was used for the detection of rubella antibodies and then questionaire survey was performed to know about the variables of past history of rubella. past rubella immunization. parity and cognition. The results were as follows: 1. The Positive rate of rubella Ig G antibody in total subjects was $65.0\%$. The positive rate of rubella Ig G antibody was $72.2\%$ in 21-25 age group. $71.4\%$ in 26-30 age group. $54.5\%$ in 31-35 age group, $52.6\%$ in 36-42 age group. As age increased, the positive rate of rubella Ig G antibody was decreased. There was statistically significant difference by age group(P=0.00l). In the subjects with a history of rubella immunization, the positive rate of rubella IgG antibody was $81.8\%$, and in those with past history of rubella was $83.3\%$ of positive rate. 2, Cognition rate about rubella immunization showed $50.8\%$ in total subjects. and there was no significant difference between parity and cognition rate of rubella immunization(P=0.85l). observed a low positive rate of rubella IgG antibody as compaired with other studies. Therefore, to prevent congenital rubella infection, rubella immunization was needed for unmarried women.

• Parasites, Hosts and Diseases
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• v.40 no.4
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• pp.191-193
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• 2002

Oriental liver fluke (Clonorchis sinensis) infection was surveyed among residents of Hamyang-gun, Gyeongsangnam-do, Korea during the period of January 2001 to March 2002. Total 1,041 stool samples were collected from residents who visited Public Health Center and its branches in Hamyang-gun and examined using formalin-ether sedimentation method. The overall egg positive rate was 16%, male showing higher positive rate (21%) than female (10%). The age group of 30 to 50 years had the highest egg positive rate of C. sinensis from 20% to 22%. The positive examinees were treated with praziquantel and educated individually to prevent reinfection . Egg positive rate in this area was decreased when compared with results recorded in the past, however, still remained more than 10%. This study suggests that periodic examination, treatment as well as education of residents should be continued and systematized.

• Parasites, Hosts and Diseases
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• v.43 no.2 s.134
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• pp.61-64
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• 2005

The aim of the present study was to find out the number of students with enterobiasis and/or taeniasis in primary schools of Sivas. Among the 2,029 students in 6 primary schools, $316(15.6\%)$ were positive to Enterobius vermicularis eggs and $32(1.6\%)$ were positive to Taenia spp. eggs by the cellophane tape method. The egg positive rates of E. vermicularis and Taenia spp. ranged from $9.4\%\;to\;27.2\%\;and\;from\;0.8\%\;to\; 2.6\%$ respectively among six schools. The egg positive rate of E. vermicularis was found to be significantly different among these schools $(X^2=31.96,\;P<0.05)$, whereas there was no significant difference between the schools for Taenia spp. $(X^2=4.37;\;P>0.05)$. The rate $(18.7\%)$ of E. vermicularis in the urban slum regions was higher than the rate $(11.5\%)$ in the urban central regions $(X^2=19.20\;P<0.05)$. Above results demonstrate that the egg positive rate of E. vermicularis and Taenia spp. was still prevalent among primary school children.

• Parasites, Hosts and Diseases
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• v.44 no.3
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• pp.247-249
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• 2006

In an attempt to determine the prevalence of pinworm infection, the egg positive rate of Enterobius vermicularis was examined using the adhesive cello-tape anal swab method in 1,512 preschool children sampled from a total of 20 kindergartens in Cheongju city, in November to December of 2004 (951 children from 13 kindergartens) and September to October of 2005 (561 from 7 kindergartens). The overall egg positive rate was found to be 7.9% (119/1,512); 9.3% (73/784) for boys and 6.3% (46/728) for girls, respectively. The 5-year age group evidenced the highest egg positive rate (10.9%, 47/430) among the examined age groups. As compared to those reported from previous works (ranged from 9.2 to 26.1 %), the prevalence of E. vermicularis in the Cheongju city area is relatively low.

• Korean Journal of Veterinary Service
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• v.15 no.1
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• pp.51-57
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• 1992

A serological survey was carried out for the detection of antibody of Bovine Leukemia Virus (BLV) in nothern parts of Chung Buk area. The results were summarized as followed. 1. The overall positive rate was revealed as high as 15% with 48 positive cases out of 319 heads examined. 2. According to age, cattle of 4 to 7 ages showed relatively higher positive rate of 15% than other ages. 3. Seasonal differences of positive rate were not recognized. 4. BLV antibody titer of scales of cattles that from 5 to 15 heads farm were the highest. 5. With the result of blood test that of BLV positive cattle, the number of WBC was slightly Increased, but other records were normal.