• Title/Summary/Keyword: cross-infection

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Studies on Haemophilus Infection in Chickens 1. Isolation of Haemophilus gallinarum from Chickens Affected with Infectious Coryza (닭의 Haemophilus감염증(感染症)에 관한 연구(硏究) I. 전염성(傳染性) Coryza의 감염계(感染鷄)로부터 Haemophilus gallinarum의 분리(分離))

  • Namgoong, Sun;An, Soo Hwan;Kim, Ki Seuk;Mo, ln Pil;Rhee, Young Ok;Park, Keun Sik;Oh, Kyung Rok
    • Korean Journal of Veterinary Research
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    • v.21 no.2
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    • pp.93-97
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    • 1981
  • It has long been believed for the presence of infectious coryza affecting serious economic loss in domestic poultry industry. However, the etiologic agent has not been isolated until quite recently. From 1979, several strains of Haemophilus-like organism were isolated from chickens with symptoms similar to infectious coryza, and their colonial morphology, growth requirement, biochemical properties and pathogenicity were assessed. In addition, serological properties of the isolates by cross hemagglutination inhibition test was also investigated. The results indicated that all the isolates were identified as Haemophilus gallinarum which had similar characteristics to the reference strains.

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Cervical Cancer Screening: Knowledge, Attitude and Practices among Nursing Staff in a Tertiary Level Teaching Institution of Rural India

  • Shekhar, Shashank;Sharma, Chanderdeep;Thakur, Sita;Raina, Nidhi
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3641-3645
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    • 2013
  • Background: Assessment of the nursing staff knowledge, attitude and practices about cervical cancer screening in a tertiary care teaching institute of rural India. Materials and Methods: A cross sectional, descriptive, interview-based survey was conducted with a pretested questionnaire among 262 staff nurses of a tertiary care teaching and research institute. Results: In this study 77% respondents knew that Pap smear is used for detection of cervical cancer, but less than half knew that Pap smear can detect even precancerous lesions of cervix. Only 23.4% knew human papilloma virus infection as a risk factor. Only 26.7% of the respondents were judged as having adequate knowledge based on scores allotted for questions evaluating knowledge about cervical cancer and screening. Only 17 (7%) of the staff nurses had themselves been screened by Pap smear, while 85% had never taken a Pap smear of a patient. Adequate knowledge of cervical cancer and screening, higher parity and age >30 years were significantly associated with self screening for cervical cancer. Most nurese held a view that Pap test is a doctor procedure, and nearly 90% of nurses had never referred a patient for Pap testing. Conclusions: The majority of nursing staff in rural India may have inadequate knowledge about cervical cancer screening, and their attitude and practices towards cervical cancer screening could not be termed positive.

Potential Role of Bacterial Infection in Autoimmune Diseases: A New Aspect of Molecular Mimicry

  • Alam, Jehan;Kim, Yong Chul;Choi, Youngnim
    • IMMUNE NETWORK
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    • v.14 no.1
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    • pp.7-13
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    • 2014
  • Molecular mimicry is an attractive mechanism for triggering autoimmunity. In this review, we explore the potential role of evolutionary conserved bacterial proteins in the production of autoantibodies with focus on granulomatosis with polyangiitis (GPA) and rheumatoid arthritis (RA). Seven autoantigens characterized in GPA and RA were BLASTed against a bacterial protein database. Of the seven autoantigens, proteinase 3, type II collagen, binding immunoglobulin protein, glucose-6-phosphate isomerase, ${\alpha}$-enolase, and heterogeneous nuclear ribonuclear protein have well-conserved bacterial orthologs. Importantly, those bacterial orthologs are also found in human-associated bacteria. The wide distribution of the highly conserved stress proteins or enzymes among the members of the normal flora and common infectious microorganisms raises a new question on how cross-reactive autoantibodies are not produced during the immune response to these bacteria in most healthy people. Understanding the mechanisms that deselect auto-reactive B cell clones during the germinal center reaction to homologous foreign antigens may provide a novel strategy to treat autoimmune diseases.

A Study on the Economic Feasibility of 4-bed Rooms in Public Hospitals (공공병원의 4인병실 도입에 따른 경제적 타당성에 관한 연구)

  • Kwon, Soonjung;Chai, Choul Gyun;Choi, Kwangseok
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.20 no.3
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    • pp.41-48
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    • 2014
  • Purpose: At the moment, a lot of Public Hospitals in Korea have adopted 5 or 6 bedrooms as a standard multi-bedroom type. However 5-6 bedrooms have many problems related to inpatient satisfaction and nosocomial diseases. Therefore 4 bedroom is under considering for standard multi-bed room in Public Hospitals in Korea. This paper tries to prove that adoption of 4 bedroom in Public Hospitals has nothing to do with economic loss which is now an obstacle in adopting 4 bedrooms. Methods: 3 Methods have been used in this paper. 1) Comparative analysis between medical insurance fee and service cost for hospitalization has been conducted through literature survey. 2) Scenario analysis has been used for the estimation of inpatient number when 4 bedrooms are adopted in Public Hospitals. 3) Relation analysis between profit and proportion of 4 bedroom in Public Hospitals. Results: Adoption of 4 bedroom as a standard multi-bedroom in Public Hospitals has been proved to have nothing to do with the economic loss of hospitals. Implications: It is necessary to introduce and expand 4 bedrooms instead of 5-6 bedrooms in hospitals for the upgrade of hospital environment and easy control of cross infection in inpatient bedrooms.

Knowledge, Perceptions, and Self-reported Performance of Hand Hygiene Among Registered Nurses at Community-based Hospitals in the Republic of Korea: A Cross-sectional Multi-center Study

  • Oh, Hyang Soon
    • Journal of Preventive Medicine and Public Health
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    • v.51 no.3
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    • pp.121-129
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    • 2018
  • Objectives: To assess the nurses' hand hygiene (HH) knowledge, perception, attitude, and self-reported performance in small- and medium-sized hospitals after Middle East Respiratory Syndrome outbreak. Methods: The structured questionnaire was adapted from the World Health Organization's survey. Data were collected between June 26 and July 14, 2017. Results: Nurses showed scores on knowledge ($17.6{\pm}2.5$), perception ($69.3{\pm}0.8$), self-reported HH performance of non-self ($86.0{\pm}11.0$), self-reported performance of self ($88.2{\pm}11.0$), and attitude ($50.5{\pm}5.5$). HH performance rate of non-self was $Y_1=36.678+0.555X_1$ (HH performance rate of self) (adjusted $R^2=0.280$, p<0.001). The regression model for performance was $Y_4=18.302+0.247X_{41}(peception)+0.232X_{42}(attitude)+0.875X_{42}(role model)$; coefficients were significant statistically except attitude, and this model significant statistically (adjusted $R^2=0.191$, p<0.001). Conclusions: Advanced HH education program would be developed and operated continuously. Perception, attitude, role model was found to be a significant predictors of HH performance of self. So these findings could be used in future HH promotion strategies for nurses.

The Effect of BSA on the Release of Cefadroxil from a Polycaprolactone Matrix (폴리카프로락톤 매트릭스로부터 세파드록실의 방출에 미치는 BSA의 영향)

  • Kim, Seung-Ryul;Jung, Yun-Jin;Kim, Young-Mi;Lee, Chi-Ho;Kim, Dae-Duk
    • Journal of Pharmaceutical Investigation
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    • v.34 no.5
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    • pp.363-368
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    • 2004
  • In order to investigate the effect of bovine serum albumin (BSA), as a pore former, on the controlled release of an antibiotic from a biodegradable polymeric device, polycaprolactone (PCL)-cefadroxil matrices were prepared by the solvent casting method. The amount of cefadroxil released from various formulations at $37^{\circ}C$ was measured by HPLC. The duration of antimicrobial activity of matrices against S. aureus was evaluated by measuring the diameters of the inhibition zone. The morphology of the matrices was investigated by scanning electron microscopy (SEM). The release rate and extent of cefadroxil from PCL matrix increased as the loading dose and particle size of BSA/cefadroxil mixture powder increased. Cefadroxil released from the matrix exhibited antibacterial activity for up to 4 days. SEM of the cross-section of matrix showed the typical channel formation after 3 days of release study. Thus, a biodegradable polymeric matrix loaded with antibiotic/BSA mixture can effectively prevent bacterial infection on its surface, thereby bringing about an enhancement of biocompatibility of biomaterials.

Distribution of Human Papillomavirus Type 58 Variants in Progression of Cervical Dysplasia in Korean Women

  • Bae, Jeong-Hoon;Cheung, Jo L.K.;Lee, Sung-Jong;Luk, Alfred C.S.;Tong, Seo-Yun;Chan, Paul K.S.;Park, Jong-Sup
    • Journal of Microbiology and Biotechnology
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    • v.19 no.9
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    • pp.1051-1054
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    • 2009
  • This cross-sectional study examined the distribution of HPV 58 sequence variation in Korean women for the first time. Among 1,750 Korean women, 53 women were positive for HPV 58 single infection, of whom 26 were without disease, 20 were with cervical intraepithelial neoplasia (CIN) 1, and 7 with CIN 2 or 3. Altogether, 36 different nucleotide sequence variations were identified with the L1, 20 within E2, 5 within E6, and 10 within E7. Further studies on variants of oncogenic HPVs are necessary, particularly for the purpose of developing more predictive HPV detection methods.

Expression and Receptor Binding Activity of Fusion Protein from Transforming Growth Factor-${/beta}1$ and GFP

  • Yoon, Jun-Ho;Kim, Pyeung-Hyeun;Chun, Gie-Taek;Choi, Eui-Yul;Yie, Se-Won
    • Journal of Microbiology and Biotechnology
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    • v.12 no.1
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    • pp.65-70
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    • 2002
  • A TGF-${\beta}1$/GFP monomeric fusion protein was cloned from pPK9A and pGFP-Cl plasmid by PCR amplification. The fusion protein was expressed in a $Bac-To-Bac^{TM}$ baculovirus expression system. A 45 kDa fusion protein was purified using an Ni-NTA column with 300 mM imidazol from a cell lysate infected with recombinant viruses for 72 h post-infection. The fusion protein cross-reacted with the commercial $TGF-{\beta}1$ polyclonal Ab as well as Ab raised against a precursor, monomeric $TGF-{\beta}1$, and GFP. The binding activity of the fusion protein with a $TGF-{\beta}1$ receptor was examined. Fluorescence was observed in Mv1Lu cells, yet not in insect cells treated with the fusion protein. No fluorescence was detected in Mv1Lu cells incubated with the fusion protein treated with Ab prior to the binding reaction, or with GFP alone, thereby indicating that the binding of the fusion protein was specific to $TGF-{\beta}1$ with a receptor.

Prospective Diary Survey of Preschool Children's Social Contact Patterns: A Pilot Study

  • Oh, Hyang Soon;Ryu, Mikyung
    • Child Health Nursing Research
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    • v.26 no.4
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    • pp.393-401
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    • 2020
  • Purpose: This pilot study aimed to describe children's social contact patterns and to analyze factors related to their social contacts. Methods: The participants were 30 children aged ≥13 months to <7 years, whose teachers at childcare centers and parents at home were asked to maintain diaries of their social contacts prospectively for 24 hours. Data were collected from November 30, 2018, to January 7, 2019. Results: The 30 participating children were in contact with 363 persons in a 24-hours period (mean, 12.1±9.1). The number of contacts showed significant relationships with day of the week (p<.001), number of family members/cohabitants (p=.015), area of residence (p=.003), and type of housing (p=.002). A multiple regression model showed significantly higher numbers of contacts on weekdays (B=10.64, p=.010). Physical versus non-physical types of contact showed significant differences in terms of duration, location, and frequency (p<.001). The duration of contacts showed significant relationships with their location and frequency (p<.001), while the frequency of contacts was significantly related to their location (p<.001). Conclusion: This is the first survey describing the characteristics of Korean preschool children's social contacts. Further large-scale social contact studies of children should be conducted.

A Study of Handwashing by Intensive Care Unit Nurses according to the Content of Nursing Faculty Practice (중환자실 간호사의 간호업무내용에 따른 손씻기에 관한 연구)

  • Kim Hyun-Ju;Kim Nam-Cho
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.12 no.1
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    • pp.121-130
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    • 2005
  • Purpose: This study was done to determine the rate for handwashing by intensive care unit nurses according to the content of nursing tasks, to investigate the relationship between hand washing practice evaluated by nurses themselves and their actual practice observed, and finality to provide basic materials for strategy for hand washing education. Method: Data were collected by observing 27 nurses working in intensive care units of a hospital in Uijeongbu, Gyeonggi-do and by using observation and a structured self-assessment tool. Collected data were analyzed with SPSS and SAS. Results: The handwashing rate for the nurses was 4.3%. The handwashing rate was high in proportion to the risk of cross infection. In addition, the handwashing rate was highest in nurses working in the neurosurgery intensive care unit. The average score for self-assessment of handwashing was $49.42{\pm}3.78$ points and it was higher than their actual practice of handwashing. Conclusion: In order to improve handwashing by nurses, it is necessary to educate them on the importance of handwashing. In addition, there should be strategies for standardizing knowledge and attitudes to handwashing and inducing nurse:3 to practice hand washing in compliance with the policies and working conditions of the institution.

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