• 제목/요약/키워드: Disease control

검색결과 7,462건 처리시간 0.035초

Bio-control of Stem Rot in Jerusalem Artichoke (Helianthus tuberosus L.) in Field Conditions

  • Junsopa, Chutsuda;Saksirirat, Weerasak;Saepaisan, Suwita;Songsri, Patcharin;Kesmala, Thawan;Shew, Barbara B.;Jogloy, Sanun
    • The Plant Pathology Journal
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    • 제37권5호
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    • pp.428-436
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    • 2021
  • Stem rot is a serious disease in Jerusalem artichoke (JA). To reduce the impact of this disease on yield and quality farmers often use fungicides, but this control method can be expensive and leave chemical residues. The objective of this study was to evaluate the efficacy of two biological control agents, Trichoderma harzianum T9 and Bacillus firmus BSR032 for control of Sclerotium rolfsii under field conditions. Four accessions of JA (HEL246, HEL65, JA47, and JA12) were treated or notreated with T. harzianum T9 and B. firmus BSR032 in a 4 × 2 × 2 factorial experiment in two fields (environments), one unfertilized and one fertilized. Plants were inoculated with S. rolfsii and disease was evaluated at 3-day intervals for 46 days. T. harzianum T9 and B. firmus BSR032 reduced disease incidence by 48% and 49%, respectively, whereas T. harzianum T9 + B. firmus BSR032 reduced disease incidence by 37%. The efficacy of T. harzianum T9 and B. firmus BSR032 for control of S. rolfsii was dependent on environments and genotypes. The expression of host plant resistance also depended on the environment. However, HEL246 showed consistently low disease incidence and severity index in both environments (fertilized and unfertilized). Individually, T. harzianum T9, B. firmus BSR032, or host plant resistance control stem rot caused by S. rolfsii in JA. However, no combination of these treatments provided more effective control than each alone.

신종감염병 관리를 위한 격리조치의 법적 측면 (Legal Issues in Quarantine and Isolation for Control of Emerging Infectious Diseases)

  • 김천수
    • Journal of Preventive Medicine and Public Health
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    • 제49권1호
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    • pp.1-17
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    • 2016
  • The Middle East respiratory syndrome coronavirus (MERS-CoV) outbreak in South Korea in 2015 has drawn public attention regarding the legal regulation of infectious disease control in Korea. This paper discusses the interpretive and legislative concerns regarding the Infectious Disease Prevention and Control Act, its ordinance and enforcement regulations, as well as public statements from the relevant administrative agency. Future improvements are also proposed.

Effects of Fungicide Control of Downy Mildew (Pseudoperonospora cubensis) on Yield and Disease Management of Ridge Gourd (Luffa acutangula)

  • Deadman, M.L.;Kagadi, S.R.;Pawar, D.R.;Gadre, U.A.
    • The Plant Pathology Journal
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    • 제18권3호
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    • pp.147-151
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    • 2002
  • Seven fungicides were compared for the control of downy mildew on midge gourd. All treatments had significantly lower rates of disease progress curves and disease severity levels than that of the control. The highest yields were obtained from crops treated with metalaxyl + mancozeb, fosetyl-Al, and chlorothalonil. These treatments also proved to be the most economical considering the treatment costs.

A contact investigation after exposure to a child with disseminated tuberculosis mimicking inflammatory bowel disease

  • Kim, Dongsub;Lee, Sodam;Kang, Sang-Hee;Park, Mi-Sun;Yoo, So-Young;Jeon, Tae Yeon;Choi, JoonSik;Kim, Bora;Choi, Jong Rim;Cho, Sun Young;Chung, Doo Ryeon;Choe, Yon Ho;Kim, Yae-Jean
    • Clinical and Experimental Pediatrics
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    • 제61권11호
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    • pp.366-370
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    • 2018
  • Purpose: Tuberculosis (TB) is one of the most important diseases that cause significant mortality and morbidity in young children. Data on TB transmission from an infected child are limited. Herein, we report a case of disseminated TB in a child and conducted a contact investigation among exposed individuals. Methods: A 4-year-old child without Bacille Calmette-$Gu{\acute{e}}rin$ vaccination was diagnosed as having culture-proven disseminated TB. The child initially presented with symptoms of inflammatory bowel disease, and nosocomial and kindergarten exposures were reported. The exposed individuals to the index case were divided into 3 groups, namely household, nosocomial, or kindergarten contacts. Evaluation was performed following the Korean guidelines for TB. Kindergarten contacts were further divided into close or casual contacts. Chest radiography and tuberculin skin test or interferon-gamma-releasing assay were performed for the contacts. Results: We examined 327 individuals (3 household, 10 nosocomial, and 314 kindergarten contacts), of whom 18 (5.5%), the brother of the index patient, and 17 kindergarten children were diagnosed as having latent TB infection (LTBI). LTBI diagnosis was more frequent in the children who had close kindergarten contact with the index case (17.1% vs. 4.4%, P=0.007). None of the cases had active TB. Conclusion: This is the first reported case of TB transmission among young children from a pediatric patient with disseminated TB in Korea. TB should be emphasized as a possible cause of chronic diarrhea and failure to thrive in children. A national TB control policy has been actively applied to identify Korean children with LTBI.

Four Human Cases of Diphyllobothrium nihonkaiense (Eucestoda: Diphyllobothriidae) in China with a Brief Review of Chinese Cases

  • Cai, Yu-Chun;Chen, Shao-Hong;Yamasaki, Hiroshi;Chen, Jia-Xu;Lu, Yan;Zhang, Yong-Nian;Li, Hao;Ai, Lin;Chen, Hai-Ning
    • Parasites, Hosts and Diseases
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    • 제55권3호
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    • pp.319-325
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    • 2017
  • We described 4 human infection cases of zoonotic fish-tapeworm, Diphyllobothrium nihonkaiense, identified with morphological and molecular characters and briefly reviewed Chinese cases in consideration of it as an emerging parasitic disease in China. The scolex and mature and gravid proglottids of some cases were seen, a rosette-shaped uterus was observed in the middle of the mature and gravid proglottids, and the diphyllobothriid eggs were yellowish-brown in color and displayed a small knob or abopercular protuberance on the opposite end of a lid-like opening. The average size of the eggs was recorded as $62-67{\times}42-45{\mu}m$. The parasitic materials gathered from 4 human cases were morphologically identified as belonging to the genera Diphyllobothrium and Adenocephalus. The phylogenetic analysis based on the nucleotide sequences of cytochrome c oxidase subunit 1 gene of the etiologic agents confirmed that the 4 cases were D. nihonkaiense infection. The finding of 4 additional D. nihonkaiense cases suggests that D. nihonkaiense might be a major causative species of human diphyllobothriasis in China. A combined morphological and molecular analysis is the main method to confirm D. nihonkaiense infection.

Chilli anthracnose (Colletotrichum spp.) disease and its management approach

  • Oo, May Moe;Oh, Sang-Keun
    • 농업과학연구
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    • 제43권2호
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    • pp.153-162
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    • 2016
  • Chilli is a widely consumed crop throughout the world. However, chilli anthracnose is a major constraint in chilli production leading to huge economic losses worldwide. Colletotrichum is a large genus of Ascomycete fungi, containing species that cause anthracnose diseases on a wide range of crops of economic value. This review is aimed at critically and accurately examining the taxonomic identification of Colletotrichum species by morphological and molecular approaches as well as assessing their management options. The use of appropriate integrated management practices, such as cultural, mechanical, chemical, and biological control, are important in chilli anthracnose disease prevention and control. Emphasis is laid on the use of biological control because it is cost effective and eco-friendly, and is an appropriate approach for disease management. The use of resistant cultivars is the cheapest, easiest, safest, and most effective means of controlling crop diseases. But, since no resistant cultivars of chilli have been developed and commercialized, it is very important to develop biological management strategies. Further studies leading to integrated disease management strategies need to be carried out.

허혈성심질환에서의 항산화영양소 상태와 혈소판 항산화계효소 활성에 관한 연구 (Plasma Antioxidant Status and Platelet Antionxidative Enzyme Activities in Patients of Ischemic Heart Disease)

  • 최영선
    • Journal of Nutrition and Health
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    • 제29권2호
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    • pp.223-231
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    • 1996
  • To investigate antioxidant status and platelet antioxidative enzyme activity in patients with ischemic heart disease, 36 male patients admitted to Kyungpook National University Hospital from June to December 1994 were compared to 36 healthy male control subjects. The percentages of heavy smoking and nonexercise were significantly higher in the patient group compared to the control, but the drinking status was not significantly different between groups. Food habit and food frequency scores were significantly lower in patients than in control subjects. Plasma retinol levels tended to be lower in the patient group, and plasma $\alpha$-tocopherol and $\beta$-carotene levels were not different between groups. There was no difference in the level of plasma thiobarbituric acid reactive substances(TBARS) and in the activities of platelet glutathione peroxidase and catalase. Our results indicate that oxidative stress, which is reflected by the plasma levels of antioxidants and TBARS, did not increase in the patients with ischemic heart disease, and the long-term effects due to smoking, poor food habit and other life styles could possibly contribute to the onset of the disease.

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Foot-and-mouth disease: overview of motives of disease spread and efficacy of available vaccines

  • Saeed, Ali;Kanwal, Sehrish;Arshad, Memoona;Ali, Muhammad;Shaikh, Rehan Sadiq;Abubakar, Muhammad
    • Journal of Animal Science and Technology
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    • 제57권4호
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    • pp.10.1-10.7
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    • 2015
  • Control and prevention of foot and mouth disease (FMD) by vaccination remains unsatisfactory in endemic countries. Indeed, consistent and new FMD epidemics in previously disease-free countries have precipitated the need for a worldwide control strategy. Outbreaks in vaccinated animals require that a new and safe vaccine be developed against foot and mouth virus (FMDV). FMDV can be eradicated worldwide based on previous scientific information about its spread using existing and modern control strategies.

대뇌 기저핵의 기능과 파킨슨 질환 (The Function of Basal Ganglia & Parkinson's Disease)

  • 김진웅;강군용
    • 대한물리치료과학회지
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    • 제9권2호
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    • pp.159-170
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    • 2002
  • Parkinson's disease(PD) is a progressive neurodegenerative disease that affects the functioning of the basal ganglia, a brain area that contributes to the control of movement. The disease is caused by the death of nerve cells in the brain that produce dopamine, a chemical messenger. The cells affected usually produce a neurotransmitter(a chemical that transmits nerver impulses) called dopamine, which acts with acetylcholine, another neurotransmitter, to fine-tune muscle control. In Parkinson's disease, the level of dopamine relative to acetylcholine is reduced, adversely affecting muscle control. When the supply of dopamine is depleted, the function of the basal ganglia is disrupted and its ability to control movement-deteriorates. The result is that PD patients experience moderate rigidity, difficulty in initiating movements and slowness in executing them, and a rhythmical tremor at rest. Although the cause of Parkinson's disease is not known, genetic factors may be involved. About 3 in 10 people with the disorder have an affected family member. About 1 in 100 people over the age of 60 in the US have Parkinson's disease. And Parkinson's disease is slightly more common in men. The course of the disease is variable, but drags may be the best effective in treating the symptoms and improving quality of life. But, The doctor may arrange physical therapy to help with physical mobility problems. It is important to continue to exercise and take care of your general health. Try to take a walk each day. Stretching exercises can help you maintain your strength and mobility. So, This papers will serve about the information of PD for clinical physical therapist. Finally, The aim of review is increasing approach method and technique for PD patients by the view of physical therapy.

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파킨슨 질환에 대한 문헌적 고찰 (The Review of Parkinson's Disease(PD) for Physical Therapist)

  • 김진웅;강군용;배수찬
    • 대한정형도수물리치료학회지
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    • 제8권2호
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    • pp.73-87
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    • 2002
  • Parkinson's disease(PD) is a progressive neurodegenerative disease that affects the functioning of the basal ganglia, a brain area that contributes to the control of movement. The disease is caused by the death of nerve cells in the brain that produce dopamine, a chemical messenger. The cells affected usually produce a neurotransmitter(a chemical that transmits nerver impulses) called dopamine, which acts with acetylcholine, another neurotransmitter, to fine-tune muscle control. In Parkinson's disease, the level of dopamine relative to acetylcholine is reduced, adversely affecting muscle control. When the supply of dopamine is depleted, the function of the basal ganglia is disrupted and its ability to control movement deteriorates. The result is that PD patients experience moderate rigidity, difficulty in initiating movements and slowness in executing them, and a rhythmical tremor at rest. Although the cause of Parkinson's disease is not known, genetic factors may be involved. About 3 in 10 people with the disorder have an affected family member. About 1 in 100 people over the age of 60 in the US have Parkinson's disease. And Parkinson's disease is slightly more common in men. The course of the disease is variable, but drugs may be the best effective in treating the symptoms and improving quality of life. But, The doctor may arrange physical therapy to help with physical mobility problems. It is important to continue to exercise and take care of your general health. Try to take a walk each day. Stretching exercises can help you maintain your strength and mobility. So, This papers will serve about the information of PD for clinical physical therapist. Finally, The aim of review is increasing approach method and technique for PD patients by the view of physical therapy.

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