• Title/Summary/Keyword: disease outbreaks

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Study on the Identification Methods of the Non-agglutinating Vibrio (NAG Vibrio의 검사에 관한 소고)

  • Lee M. W.
    • Journal of environmental and Sanitary engineering
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    • v.2 no.2 s.2
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    • pp.61-67
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    • 1987
  • The genus Vibrio contains some of the most important intestinal pathogens of humans, including Vibrio cholerae, the cause of epidemic Asiatic cholera. A group of organisms which have been reffered to as the non-agglutinating vibrio (NAG) do not agglutinate in the Vibrio cholerae 0 group 1 antisera, but are indistinguishable from the 0-1 group both chemically and genetically. Non-O-l Vibrio cholerae can cause isolated as well as focal outbreaks of diarrhea, but the volume of fluid loss does not approach that of classic cholera, and the disease is usually self-limiting. These free-living organisms are found world-widely distributed in the environment including sewage, contaminated water, estuaries, seafood and animals. These strains involved in several cases were isolated from the environment and some patients of diarrhea, and a few epidemiologic reports indicated the wide distribution of the strains throughout the country, giving an attention to the role the organisms may play in an outbreak of diarrhea in Korea. More research on the epidemiology, serologic typing and virulence of the group of organisms, should be, therefore, done to obtain a complete understanding of their role in human disease.

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Isolation and Identification of Influenza Virus from Pusan, 1998-1999 (1998-1999년 절기에 부산지역에서 유행한 인플루엔자 바이러스의 분리)

  • 조경순;김만수;김지희;안정배;이주연;정명주;정영기
    • Journal of Life Science
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    • v.9 no.5
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    • pp.570-574
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    • 1999
  • Investigate the epidemics for influenza outbreaks. The outbreak pattern of the internal patients housed in the 10 designated hospitals was monitered to investigate and the characteristics of the virus isolates are as follows. 232 strains of influenza virus was isolated from the oral specimen of 1,320 respiratory disease patients in Pusan from Oct. 1998 to Jun. 1999. Among these isolates, 222 strains were A-type and the rest were B-type. The outbreak pattern for sex-and age-groups is as follows. The male outbreak was similar to the female outbreak: male outbreak, 47.4% and female outbreak, 52.5%. Most of the patients were less than 10 years old. The monthly influenza outbreak was consistent from Dec. 1998 to Apr. 1999. and The 113 strains from the A-type isolates were A/ Sydney/05/97(H3N2)-like, the 109 strains were A/Beijing/262/95(H1N1)-like, and all of the 10 B-type isolates were B/Harbin/07/94-like.

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Waterborne Pathogens Identification in Public Bathroom by PCR-Reverse Blot Hybridization Assay

  • Choi, Seung-Gu;Song, Woon-Heung;Lee, Jae-Sang;Yang, Byoung-Seon;Choi, Myeong-Sik
    • Korean Journal of Clinical Laboratory Science
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    • v.43 no.3
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    • pp.120-123
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    • 2011
  • A total of 30 water samples were collected from 30 different public baths in Seoul, Korea. Contamination of public bath water by waterborne pathogens can cause disease outbreaks and contribute to increase background rates of disease. Pathogens in water was filtered by nitrocellulose membrane with $0.45{\mu}m$ pore size. The membrane filters were analyzed by both cultivation and polymerase chain reaction (PCR) amplification of partial 16S rRNA gene. Various microorganisms including 4 Escherichia coli/Shigella spp. 1 Salmonella spp. 3 Pseudomonas aeruginosa and 2 Mycobacterium spp. were identified by reverse blot hybridization assay (REBA). PCR-REBA was able to identify many bacterial genera in one assay. Our results suggest that appropriate hygiene practice and continuous monitoring is needed for reducing health risk associated with public bath houses.

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School closures during the coronavirus disease 2019 outbreak

  • Cho, Eun Young;Choe, Young June
    • Clinical and Experimental Pediatrics
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    • v.64 no.7
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    • pp.322-327
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    • 2021
  • School closures during the coronavirus disease 2019 (COVID-19) pandemic have been outlined in studies from different disciplines, including economics, sociology, mathematical modeling, epidemiology, and public health. In this review, we discuss the implications of school closures in the context of the current COVID-19 pandemic. Modeling studies of the effects of school closures, largely derived from the pandemic influenza model, on severe acute respiratory syndrome coronavirus 2 produced conflicting results. Earlier studies assessed the risk of school reopening by modeling transmission across schools and communities; however, it remains unclear whether the risk is due to increased transmission in adults or children. The empirical findings of the impact of school closures on COVID-19 outbreaks suggest no clear effect, likely because of heterogeneity in community infection pressure, differences in school closure strategies, or the use of multiple interventions. The benefits of school closings are unclear and not readily quantifiable; however, they must be weighed against the potential high social costs, which can also negatively affect the health of this generation.

Experience of Treating Critically Ill COVID-19 Patients in Daegu, South Korea

  • Shin, Kyeong-Cheol
    • Tuberculosis and Respiratory Diseases
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    • v.84 no.3
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    • pp.176-181
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    • 2021
  • At the beginning of February 2020, Daegu faced a serious situation due to the rapid outbreak of coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus-2. The healthcare system in Daegu Metropolitan City was ill-prepared for this sudden disaster situation. The COVID-19 pandemic is still ongoing in South Korea. Daegu has limited medical resources compared to the Seoul Metropolitan Area, and it is hypothesized that a review of the outbreak therein could provide information that will be valuable for dealing with future outbreaks. The likelihood of death due to COVID-19 depends on the capacity of the area for the treatment of critically ill patients. This report reviews the overall treatment process followed for critically ill patients in Daegu.

Experiences of Hospice and Palliative Nurses in Response to the COVID-19 Pandemic: A Qualitative Study

  • Kwon, Sinyoung;Choi, Sujin
    • Journal of Hospice and Palliative Care
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    • v.24 no.4
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    • pp.245-253
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    • 2021
  • Purpose: This study aimed to explore the experiences of hospice and palliative care (HPC) nurses at inpatient hospice centers in South Korea during the coronavirus disease 2019 pandemic. Methods: Data collection was conducted through individual interviews with 15 HPC nurses using face-to-face interviews, telephone calls, or Zoom videoconferencing. Data were analyzed using the thematic analysis method. Results: This study found that HPC nurses experienced practical and ethical dilemmas that reinforced the essential meaning and value of hospice and palliative care. The participants emphasized their practical roles related to compliance with infection prevention measures and their roles as rebuilders of hospice and palliative care. Conclusion: The findings of this study indicate that inpatient hospice centers must mitigate the practical and ethical dilemmas experienced by nurses, consider establishing explanation nursing units, and provide education to support nurses' highlighted roles during the pandemic. This study can be used to prepare inpatient hospice centers and the nurses that work there for future infectious disease outbreaks.

Newcastle disease virus: the past and current situation in Indonesia

  • NLP Indi Dharmayanti;Diana Nurjanah;Harimurti Nuradji;Teguh Suyatno;Risa Indriani
    • Journal of Veterinary Science
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    • v.25 no.1
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    • pp.3.1-3.20
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    • 2024
  • The Newcastle disease virus (NDV) outbreak was first reported in Java Island, Indonesia, in 1926, which was then reported further in Newcastle-upon-Tyne, England. Nevertheless, the NDV is still endemic in Indonesia, with outbreaks occurring in free-range and commercial chicken farms. The dynamic evolution of the NDV has led to the further development of vaccines and diagnostic tools for more effective control of this virus. This paper discusses the history of the NDV occurrence, vaccines, the development of diagnostic tools, and the epidemiological condition of the NDV in Indonesia. Indonesia, which has the largest poultry population in the world after China, has challenges in preventing and controlling this virus that causes economic losses to the farmers and has an impact on the welfare of the poultry farming community in Indonesia.

Initiate Architecture Design Guideline Study for Infectious Disease Response Facilities in Public Health Centers - Focused on Field Survey for Temporary Facilities (지역보건의료기관 감염병 대응시설 계획을 위한 기초연구 - 임시시설 현장 조사 중심으로)

  • Kang, Jeeeun;Kwon, Soonjung
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.30 no.1
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    • pp.27-36
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    • 2024
  • Purpose: The role and facilities of public health centers responsible for local health are becoming increasingly important due to recurring infectious diseases such as COVID-19. With sudden outbreaks of infectious diseases, the infrastructure of public health center facilities like screening clinics are constructed varies depending on local conditions. resulting in discrepancies between intended usage and actual usage. Establishing guidelines for infectious disease response facilities that can be efficiently used within local communities is necessary. Methods: Field surveys are conducted at 6 public health centers to gather insights into the essential rooms, circulation patterns, and key considerations for space planning in screening clinics. Results: Ten design considerations emerge from the data, including spatial requirements, circulation guidelines, and considerations for accommodating diverse user needs and local conditions. Implications: Further research is needed to translate these guidelines into prototypes of temporary facilities.

NIPAH Virus - "A Bane to Mankind"

  • Jaiganeshan Muttiah Velmurugan;Lakshmi Krishnasamy
    • Microbiology and Biotechnology Letters
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    • v.52 no.3
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    • pp.221-232
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    • 2024
  • Zoonotic diseases are rare but the transmission of disease to humans may cause serious illness. Nipah virus (NiV) is a bat-borne zoonotic pathogen, which can cause severe encephalitis and respiratory distress. The transmission of Nipah virus from bats to humans was first reported in Malaysia in 1998. Different strains of NiV show different epidemiological and clinical features. Few of the strains are highly lethal and can spread to the community resulting in a global threat. However, the availability of effective management or prophylactic measures are only limited. Thus, it is essential to contain such outbreaks by implementing proper infection control and surveillance measures. Many serological and molecular diagnostic techniques have been developed for diagnosis of this infection. This review mainly focuses on the epidemiology, transmission of Nipah virus, pathogenesis and management of NiV infection. The review also throws light on the immune response of NiV in humans and the role of One Health approach in prevention and control of NiV infection.

Retrospective study of the medical status of 34 Formosan sika deer (Cervus nippon taiouanu) at the Taipei Zoo from 2003 to 2014

  • Kang, Chu-Lin;Yu, Jane-Fang;Lai, Hsueh;Guo, Jun-Cheng;Wang, Lih-Chiann
    • Korean Journal of Veterinary Research
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    • v.55 no.3
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    • pp.169-173
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    • 2015
  • The Formosan sika deer (Cervus nippon taiouanus) is an endemic subspecies in Taiwan. The original wild deer has been extinct since the late 1960s. The largest captive population is located at the Taipei Zoo. Except for infectious disease outbreaks, no systemic medical research has been reported for this subspecies. This study was conducted to analyze the medical status of the captive Formosan sika deer population, including the hematological and serum chemistry characteristics. To accomplish this, medical records for 34 Formosan sika deer from January 2003 to January 2014 were acquired and analyzed. The most common illness and cause of death was trauma, followed by gastrointestinal and respiratory disease, respectively. The hematologic and serum chemical values of healthy adults were quite different from those of sika deer (Cervus nippon yesoensis). This study provides a closer medical understanding of this subspecies and the results will facilitate its management.