• Title/Summary/Keyword: epidemic prevention

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Transcriptome profiling identifies immune response genes against porcine reproductive and respiratory syndrome virus and Haemophilus parasuis co-infection in the lungs of piglets

  • Zhang, Jing;Wang, Jing;Zhang, Xiong;Zhao, Chunping;Zhou, Sixuan;Du, Chunlin;Tan, Ya;Zhang, Yu;Shi, Kaizhi
    • Journal of Veterinary Science
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    • v.23 no.1
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    • pp.2.1-2.18
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    • 2022
  • Background: Co-infections of the porcine reproductive and respiratory syndrome virus (PRRSV) and the Haemophilus parasuis (HPS) are severe in Chinese pigs, but the immune response genes against co-infected with 2 pathogens in the lungs have not been reported. Objectives: To understand the effect of PRRSV and/or HPS infection on the genes expression associated with lung immune function. Methods: The expression of the immune-related genes was analyzed using RNA-sequencing and bioinformatics. Differentially expressed genes (DEGs) were detected and identified by quantitative real-time polymerase chain reaction (qRT-PCR), immunohistochemistry (IHC) and western blotting assays. Results: All experimental pigs showed clinical symptoms and lung lesions. RNA-seq analysis showed that 922 DEGs in co-challenged pigs were more than in the HPS group (709 DEGs) and the PRRSV group (676 DEGs). Eleven DEGs validated by qRT-PCR were consistent with the RNA sequencing results. Eleven common Kyoto Encyclopedia of Genes and Genomes pathways related to infection and immune were found in single-infected and co-challenged pigs, including autophagy, cytokine-cytokine receptor interaction, and antigen processing and presentation, involving different DEGs. A model of immune response to infection with PRRSV and HPS was predicted among the DEGs in the co-challenged pigs. Dual oxidase 1 (DUOX1) and interleukin-21 (IL21) were detected by IHC and western blot and showed significant differences between the co-challenged pigs and the controls. Conclusions: These findings elucidated the transcriptome changes in the lungs after PRRSV and/or HPS infections, providing ideas for further study to inhibit ROS production and promote pulmonary fibrosis caused by co-challenging with PRRSV and HPS.

INTEGRATION OF CONSTRUCTION TECHNIQUES FOR SPECIAL ISOLATION WARDS OF HOSPITAL BUILDINGS

  • Chi-Su Tai ;Sy-Jye Guo
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.627-632
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    • 2005
  • The severe acute respiratory syndrome -SARS virus spreaded rapidly in Asia in 2003 caused a lethal and serious epidemic. Establishing special isolation wards of high-level epidemic prevention has becomes one of the most important tasks of epidemic prevention. Taking the biosafety level of US CDC biology laboratory as an example, the laboratory of the highest level, BL4 and that of the second high level, BL3 are only allowed to handle and research this kind of highly dangerous viruses safely, to ensure the safety of researchers and the surrounding environment.This research aims to study the functions and the design requirements of "special isolation wards", which is equivalent to the high-level biotechnology laboratory, and have an integrated discussion about the design and construction techniques of this kind of wards, expecting to provide a reference for constructing special isolation wards and maintaining operation safely in Taiwan.

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Traditional Unani Medicine in Flu-like Epidemics and COVID-19 during Pregnancy: A Literary Research

  • Sultana, Arshiya;Khanam, Marhaba;Rahman, Khaleequr;Sumbul, Sumbul
    • CELLMED
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    • v.11 no.4
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    • pp.20.1-20.23
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    • 2021
  • Background: The pandemic COVID-19 caused by a novel coronavirus SARS-COV-2 has spread like a forest fire. This disease may have serious consequences for pregnant women. Presently, no specific drugs or vaccines exist to battle this disease and researches are underway. Unani medicine has a unique role in prevention and management during epidemics. Here, we reviewed the overview of COVID-19 infection and pregnancy, concept and practices in Unani medicine for flu-like epidemics in general and pregnancy, and safety of Unani drugs for the prevention and treatment of mild symptomatic cases of COVID-19 during pregnancy. Methodology: Unani classical texts and pharmacopoeia were meticulously explored for concepts and practices for flu-like epidemic diseases. Further, we browsed scientific databases such as PubMed, Scopus and others for an overview, epidemics and Unani medicine, effectiveness and safety of Unani drugs in COVID-19 and pregnancy. Results: Unani medicine includes prevention and management of flu-like epidemic include quarantine and isolation, aromatic herbal drugs fumigation and spraying for environmental disinfection, ilaj bid tadbir for health promotion and use of health-protecting drugs and symptom-specific drugs in general and related to pregnancy. Lahsun, asalussus, behidana, banafsha, zanjabeel, unnab, etc are in use since antiquity for the prevention and treatment of asymptomatic and mildly symptomatic pregnant women during infectious and epidemic diseases. Conclusion: Currently, the aforementioned plants are proven for antiviral, antioxidant, immunomodulatory and anti-inflammatory activities, probably useful in the COVID-19 pandemic. Additionally, scientific studies have provided new insight into the mechanism underlying the therapeutic effect of Unani medicines that are safe in pregnancy.

Effect of Arachidonic Acid on Production of Laminin and Connexin of Granulosa Cells from Chicken Pre-hierarchical Follicles

  • Jin, Yanmei;Tan, Tu Quang;Zhang, Caiqiao
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.3
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    • pp.350-355
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    • 2009
  • Arachidonic acid (AA) is a polyunsaturated fatty acid that is a normal constituent of membrane lipids in animal cells. In addition to its role as a precursor of prostaglandins, AA itself may play an important role in the regulation of cell function. The effect of AA on functions of granulosa cells was investigated in pre-hierarchical small yellow follicles of laying hens. Immuno-cytochemical staining showed that AA ($10^{-7}-10^{-5}$ M) increased the expression of the extracellular matrix glycoprotein laminin, gap junction connexin 43 and protein kinase C (PKC). Therefore, mediated by the PKC signal pathway, AA may regulate the intercellular communication of granulosa cells and follicular development by increasing the expression of laminin and connexin.

Rapid construction delivery of COVID-19 special hospital: Case study on Wuhan Huoshenshan hospital

  • Wang, Chen;Yu, Liangcheng;Kassem, Mukhtar A.;Li, Heng;Wang, Ziming
    • Advances in Computational Design
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    • v.7 no.4
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    • pp.345-369
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    • 2022
  • Infectious disease emergency hospitals are usually temporarily built during the pneumonia epidemic with higher requirements regarding diagnosis and treatment efficiency, hygiene and safety, and infection control.This study aims to identify how the Building Information Modeling (BIM) + Industrialized Building System (IBS) approach could rapidly deliver an infectious disease hospital and develop site epidemic spreading algorithms. Coronavirus-19 pneumonia construction site spreading algorithm model mind map and block diagram of the construction site epidemic spreading algorithm model were developed. BIM+IBS approach could maximize the repetition of reinforced components and reduce the number of particular components. Huoshenshan Hospital adopted IBS and BIM in the construction, which reduced the workload of on-site operations and avoided later rectification. BIM+IBS integrated information on building materials, building planning, building participants, and construction machinery, and realized construction visualization control and parametric design. The delivery of Huoshenshan Hospital was during the most critical period of the Coronavirus-19 pneumonia epidemic. The development of a construction site epidemic spreading algorithm provided theoretical and numerical support for prevention. The agent-based analysis on hospital evacuation observed "arched" congestion formed at the evacuation exit, indicating behavioral blindness caused by fear in emergencies.

The current status and strategies of livestock health control on national and international basis (국내.외 가축위생관리기준의 현황, 적용과 대책)

  • Ryu, Il-Sun
    • 한국환경농학회:학술대회논문집
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    • 2009.07a
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    • pp.240-272
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    • 2009
  • Recently, as Foot and Mouth disease(FMD) outbreaks in South-East Asia, Taiwan, China, we cannot loose our tense to sustain our FMD free country status. And we have increasing possibility of disease inflow because of continual outbreaks of FMD type A, O and Asia 1 in neighbored countries, foreign visitor and foreign workers. So we have to be urgently ready for strengthen surveillance, early-report and early-diagnosis. So the most important things in epidemic control of livestock are co-work between central and local epidemic control office and field epidemic control. However, potential risk for FMD recurrence and sporadic occurrence of epidemic disease still threaten our livestock farmhouse, so we have to be ready for bio-security against these threatening. For these reasons, I will introduce the concept, etiology and epidemiology of disease and investment/ analysis of health management standard of main animals like cattle and pig which is applied to the inside and outside of country. With these references, we have to manage livestock health management thoroughly by establishing livestock health management standard and notifying special veterinarian and livestock farmer of these standard. Later on, prevention and quarantine of epidemic outbreak and establishing livestock health management standard should be undertaken primarily for sustainable growth and stability of livestock farm industry.

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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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    • v.61 no.11
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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.

A Study on the perception of epidemic febrile disease[瘟疫] in the Sinchanbyeokonbang(新纂辟瘟方) and its significance as prevention contents - Based on comparison with Dong-uibogam(東醫寶鑑) - (『신찬피온방(新纂辟瘟方)』의 온역(瘟疫) 인식 및 피역서(辟疫書)로서의 의의에 대한 고찰 - 『동의보감(東醫寶鑑)·온역문(瘟疫門)』과의 비교를 중심으로 -)

  • Kim, Sang-Hun;Baik, You-Sang;Jeong, Chang-Hyun;Jang, Woo-Chang
    • Journal of Korean Medical classics
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    • v.26 no.4
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    • pp.355-366
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    • 2013
  • Based on analysis of the organization and listed formulas of the Sinchanbyeokonbang(新纂辟瘟方), it is clear that it has been published based on the Dong-uibogam(東醫寶鑑). This study was carried out under this premise, with focus on the differences between Sinchanbyeokonbang and the epidemic febrile disease[瘟疫] chapter of the Dong-uibogam. In short, Sinchanbyeokonbang reflected a changed view on the epidemic febrile disease, improving its professionalism by supplementing formulas from previous texts and folk prescriptions. At the same time, it improved clinical practicality rather than medical, academic facts, which shows its objective in improving public health and medicine.

A Study on the concept of makwon in onbyeonghak(溫病學) and its practical application (온병학(溫病學)의 막원(膜原) 개념과 그 실제적 활용에 대한 고찰)

  • Kim, Sanghyun
    • Journal of Korean Medical classics
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    • v.30 no.4
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    • pp.83-93
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    • 2017
  • Objective : Doctors' discussions on Makwon's warm-disease are studied in an effort to contemplate a way to use the outcome in practice. Method : Doctors' discussions on Makwon as found in researches and texts are categorized into physical and pathologica, and their symptoms and treatments are analyzed. Result & Conclusion : Many doctors of warm disease explained that, in terms of the physical aspect, Makwon is closely related to stomach. Some doctors also mentioned its relationship with triple engizers, defense and nutrient qi, and spleen. In terms of pathology, most of the doctors considered Makwon to be a hiding place of foul turbidity pathogen, and explained that a treatment has to be applied before the disease pattern worsens. Diverse syndroms of Makwonwere introduced. Their discussions mainly revolved around warm and epidemic or category of dampness-heat diseases. Alternating chills and fever was also mentioned often, and generalized pain, nausea, tongue of thick and slimy fur symptoms are shown. Ouguk's Dalwonneum is used as the basic treatment. The most effective prevention method of the incubation of pathogen are the symptoms that allows the analysis of the mechanism of disease. Therefore, a good utilization method of resolve turbidity with aroma or spices may contribute to the prevention of Makwon-disease in terms of cultural aspect.

The Role of China Douyin Short Video App During COVID-19

  • Zhou, Yaqi;Lee, Jong Yoon;Liu, Shanshan;Fan, Hao
    • International Journal of Contents
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    • v.18 no.2
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    • pp.1-17
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    • 2022
  • As of September 2021, COVID-19 is still seriously impacting people globally. To better control the epidemic, the Chinese government adopted a nationwide quarantine policy at the early stage of the discovery of COVID-19, which has significantly changed people's production and life. China's Douyin app (International version: TikTok) is an extremely influential entertainment and social tool. During COVID-19, a large number of short videos about COVID-19 appeared. Publishers included government agencies, professionals, and self-media. The content released has made Douyin a tool for people to receive COVID-19 information in addition to entertainment and social functions. This is a quantitative study. By exploring the impact of the Douyin app on Chinese college students during COVID-19, this study provides suggestions from the level of social media such as TikTok to enable Korea's epidemic prevention to be more effective. This study established variable questions such as Douyin's information perceived value, information usage channels, information awareness, anti-epidemic policy attitude, trust of public institution and preventive behavioral intention, and conducted a questionnaire survey. Using SPSS to analyze the obtained data, this study found that: 1. The short video information usage channels about COVID-19 in Douyin have a positive impact on the audience's information awareness; 2. The information perceived value in Douyin has a positive impact on the audience's information awareness; 3. Information awareness and trust of public institution in Douyin have a positive impact on the audience's anti-epidemic policy attitude; 4. Information awareness and trust of public institutions in Douyin have a positive impact on the audience's preventive behavioral intention; 5. The audience's anti-epidemic policy attitude has a positive effect on preventive behavioral intention.