• Title/Summary/Keyword: 감염율

Search Result 1,155, Processing Time 0.027 seconds

Studies on Purple Seed Stain (Cercospora kikuchii) of Native Soybean Collections (재래종대두의 자반병 감염에 관한 연구)

  • Kwon, S.H.;Ou, J.H.;Kim, J.R.;Song, H.S.
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.22 no.1
    • /
    • pp.11-15
    • /
    • 1977
  • Natural infection of purple stain seemed to be higher in early maturing lines comparing to late maturing group. It was positively correlated with length of the period from flowering to maturity and significantly associated with weather conditions during the maturing period.

  • PDF

녹비작물 재배지 Arbuscular 균근균(AMF) 포자밀도 및 감염율 조사

  • Yang, Seung-Gu;Seo, Yun-Won;Hwang, In-Taek;Kim, Hong-Jae;Son, Bo-Gyun;Wi, Chi-Do;Lee, Jeong-Hyeon
    • Proceedings of the Korean Society of Organic Agriculture Conference
    • /
    • 2008.12a
    • /
    • pp.103-109
    • /
    • 2008
  • 고추 시설재배지에 녹비작물 재배가 토양의 Arbuscular 균근균(AMF) 포자밀도 및 감염율에 미치는 영향을 구명하고자 보리와 호밀, 헤어리베치, 완두콩을 파종하여 1차 녹비작물 재배 후 토양에 환원하고 고추를 재배한 다음, 2차 녹비작물 재배하여 시설 토양내 Arbuscular 균근균(AMF) 포자밀도 및 감염율을 조사한 결과 AMF포자밀도는 녹비작물 재배지가 대조구보다 높은 경향을 보였다. 기주작물별 AMF활성포자의 밀도는 보리와 완두콩이 호밀, 헤어리베치 그리고 쇠별꽃에 비하여 높았다. 녹비작물의 기주작물별 AMF포자의 형태와 크기는 유의적인 차이가 인정되지 않았다. 녹비작물의 기주 작물별로 뿌리 내 AMF 감염율을 조사한 결과 보리녹비작물에서 감염율이 높았으며 녹비작물의 감염구조는 뿌리내부 균사임이 확인되었고 AMF 균사의 Network도 매우 발달되었다.

  • PDF

Infestation rate of head lice in primacy school children in Inchon, Korea (인천시의 한 국민학교 아동들의 머릿니 감염상)

  • 홍한기;김치문
    • Parasites, Hosts and Diseases
    • /
    • v.33 no.3
    • /
    • pp.243-244
    • /
    • 1995
  • The survey of the head louse infestation of primary school children in Inchon city was carried out in May 26-27, 1995. Total number of the children surveyed were 1, 530. Four (0.5%) out of 768 boys were infested with nits or adults/nymphs of lice and 72 (9.4%) out of 762 girls were positive with those of lice. The infestation rate of lice for girls was 19 times higher than that of boys.

  • PDF

지역에 따른 기생충감염 실태,아직도 심각

  • Ju, Gyeong-Hwan
    • 건강소식
    • /
    • v.13 no.3 s.124
    • /
    • pp.32-35
    • /
    • 1989
  • 전반적 기생충 감염율은 감소되는 반면 다른 기생충 질환이 사회적으로 문제가 되고 있으며, 지역에 따라서는 다른 지역에 비해 높은 감염율을 나태 내는 특정 기생충 질환이 문제가 된다.

  • PDF

Prevalence and Detection of Perkinsus sp. infection in the Manila clams, Ruditapes philippinarum (양식 바지락, Ruditapes philippinarum의 Perkinsus sp. 검출현황과 현장조사)

  • Park, Sung-Woo;Lee, Kyung-Hee;Choi, Dong-Lim
    • Journal of fish pathology
    • /
    • v.18 no.1
    • /
    • pp.49-58
    • /
    • 2005
  • Hemacolor stain, histopathological observation and FTM incubation assay were applied to detect Perkinsus sp. infection in Manila clams (Ruditapes philippinarumi taken from culture beds at Tean and Gochang from March 2002 to August 2003. The prevalency was 100% in the clams from Gochang and 20-70% from Tean. Of the three methods, histopathological observation was the most effective to detect the infection. And the parasites was most abundant in gills. When PCR assay was applied to detect Perkinsus sp. for four species of Mollusc such as manila clam, surf clam (Mactra veneriformis), oyster (Crassostrea gigas) and Thomas' rapa whelk (Rapana venosa) taken from Tean and Gochang from April to July 2004, the parasites were detected from all the species at the infection rates of 95%, 62%, 46.9% and 10% in that order. The infection rate was much higher in the species burrowing in the bottom sediments than those attaching on the tidal rock. The results suggest that Perkinsus sp. may affect almost all the molluscs inhabiting western coastal areas of Korea.

Prevalence Rate of HBsAg and Anti-HBs in prostitutes (윤락여성의 혈청 HBsAg 및 Anti-HBs 양성율)

  • Kim, Chang-Youn
    • Journal of Preventive Medicine and Public Health
    • /
    • v.16 no.1
    • /
    • pp.13-18
    • /
    • 1983
  • This study was attempted to define epidemiologically the possibility and the magnitude of sexual transmission of HBV in Korea. Two groups of prostitutes; one group (309) deals with Koreans, the other group (126) deals with American soldiers stationing in Korea, were tested for the presence of HBsAg and anti-HBs. The prevalence rate of HBsAg or anti-HBs was significantly higher in prostitutes who deal with Koreans (41.7%) than in prostitutes who deal with American soldiers (30.2%) (p<0.025). Among the prostitutes who deal with American soldiers, there was no appreciable difference in the prevalence rate of HBsAg or anti-HBs by the duration of prostitution. However, among the prostitutes who deal with Koreans, the prevalence rate was increased with the duration of prostitution, although it did not reach the statistically significant level (p=0.12). There was no remarkable association between the prevalence rate of HBsAg or anti-HBs and educational level, history of operation or history of transfusion. The data support the possibility of sexual transmission of viral hepatitis B but it seems seems sexual transmission does not contribute significantly to the prevalence rate of HBsAg or andi-HBs in Korea.

  • PDF

기생충 관리의 새로운 방향을 모색한다

  • Chae, Jong-Il
    • 건강소식
    • /
    • v.13 no.2 s.123
    • /
    • pp.24-31
    • /
    • 1989
  • 지난해 우리나라 기생충 감염율이 1.5%인 것으로 집계되었다. 변화의 추이를 보면 회충등 토양매개성 기생충은 감소하는 반면 요충, 간흡충 등의 감염율은 크게 감소하지 않은 실정인 것으로 밝혀졌다. 이 자료를 토대로 기생충 관리의 새롭고 구체적인 방향을 모색해 보기로 한다.

  • PDF

기생충 관리의 새로운 방향을 모색한다2

  • Chae, Jong-Il
    • 건강소식
    • /
    • v.13 no.3 s.124
    • /
    • pp.28-31
    • /
    • 1989
  • 지난해 우리나라 기생충 감염율이 1.5%인 것으로 집계되었다. 변화의 추이를 보면 회충등 토양매개성 기생충은 감소하는 반면 요충, 간흡충 등의 감염율은 크게 감소하지 않은 실정인 것으로 밝혀졌다. 이 자료를 토대로 기생충 관리의 새롭고 구체적인 방향을 모색해 보기로 한다.

  • PDF

Prevalence of head louse infestation in primary school children in Kangwon-do, Korea (강원도 일부 국민학생들의 머릿니 감염율)

  • Sun Huh;Ki-Soo Pai;Seung Joon Lee;Kyung-Jin Kim;Nam-Ho Kim
    • Parasites, Hosts and Diseases
    • /
    • v.31 no.1
    • /
    • pp.67-70
    • /
    • 1993
  • We tried to reveal the prevalence rates of the head louse infestation in school children in Kangwon-do, Korea in December 1990. A total of 912 children in flour primary schools was examined. The positive rate for adults and/or nits of Pediculus humonus capitis was 37.2%. One school was followed-up without specific intervention. There was no significant change of the prevalence rate 6 months after the first examination from 66.0% to 57.3%. We could see the persistent infestation rate if there was no intervention. We are emphasizing the significance of worm positive rate because it represents the potentiality of active transmission.

  • PDF

Infection status of anisakid larvae in anchovies purchased from local fishery market near southern and eastern sea in Korea (해안지역에서 시판되는 멸치의 anisakid 유충 감염상)

  • 송수복;이상룡
    • Parasites, Hosts and Diseases
    • /
    • v.33 no.2
    • /
    • pp.95-100
    • /
    • 1995
  • A survey was carried out on the larval anilsakids in anchovies (Engrnuyis jnponica) which were caught from April to .lune in 1993 at the southern and eastern sea in Korea. Anisakids in anchovies were morphological classified into Anisakis type I and II and Contracaecum type B and C, after fixation in 70% alcohol and clearing in lactophenol. A examined. The infection rates showed no relation with length of the anchovies. The numbers of anisakids by organs of anchovies were 96 (56.1%) from the muscle, 65 (38.0%) from the omentum, 7 (4.1%) from the intestine, 2 (1.7%) from the stomach and 1 (0.6%) from the testis. Infection rates of anchovies with anisakids by localities were 5.1% at Taebyon, 8.0% at Sokcho and 9.2% at Chungmu. The larval uisikids in anchovies may infect humans who often eat raw anchovies.

  • PDF