• Pediatric Infection and Vaccine
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• 제31권1호
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• pp.83-93
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• 2024

목적: 코로나19 판데믹이 시작된 이후, 다양한 주요 변이 바이러스가 출현했다. 코로나 19 판데믹 기간 동안 대표적인 주요 변이 바이러스 유행 시기를 네 가지로 나누고, 네 가지의 주요 변이 바이러스 시기로부터 임상적 그리고 혈액학적 검사의 특징을 파악하고자 하였다. 방법: 코로나19 확진으로 입원한 19세 이하 환자의 의무기록을 후향적으로 분석하였다. 변이전시기(2020년 2월 1일-2020년 9월 30일), 알파와 베타 변이 시기(2020년 10월 1일-2021년 5월 31일), 델타 변이 시기(2021년 6월 1일-2021년 10월 31일), 오미크론 변이 시기(2021년 11월 1일-2022년 5월 31일)를 비교하였다. 결과:대상환자 827명중에서 163명(19.7%)가무증상이었고, 발열과기침의빈도는각각 320명(38.7%), 399명(48.2%)이었다. 38.5℃ 이상의 발열이 있었던 경우는 12세 미만인 경우에 오미크론 변이 시기에 높게 관찰되었다. 혈액학적 검사에서 백혈구 감소증, 임파구 감소증 그리고 호중구 감소증은 각각 33%, 30.2%, 24.9%로 관찰되었다. 결론: 코로나 19의 주요 변이 바이러스 우세 시기에 다른 특징들이 있었다. 델타 변이 시기에 4일 이상의 발열이 지속되는 경우가 더 많았고, 오미크론 변이 시기에는 38.5℃ 이상의 발열을 가지는 경우가 많았다.

• 정보관리학회지
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• 제37권3호
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• pp.203-220
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• 2020

코로나19 대유행이 장기화됨에 따라 비대면 사회로 전환되고 있으며, 이는 국내외 도서관계의 서비스 방법론에도 영향을 미치고 있다. 이에 본 연구에서는 공공도서관의 코로나19 대응조치에 관한 사서인식을 조사하였으며, 분석된 결과를 토대로 신종 감염병이 확산 및 장기화되고 있는 상황에서의 공공도서관의 대응방안을 제안하였다. 구체적으로 살펴보면, 첫째, 유행성 질병에 대해 공동으로 대응하는 국가 중심의 도서관 대책 마련, 둘째, 정부 차원의 예산 지원을 통한 다양하고 체계적인 공공도서관 비대면 및 온라인서비스 강화, 셋째, 직원 및 이용자 측면에서의 철저한 방역 및 선제적 대응, 넷째, 정보불평등 계층의 디지털 문화 격차를 해소하기 위한 도서관서비스 확대를 제안하였다.

• 사상체질의학회지
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• 제33권4호
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• pp.32-42
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• 2021

Objectives The purpose of this case study was to report a patient with Post COVID-19 syndrome treated with Seunggeumjowi-tang based on Sasang Constitutional Medicine. Methods The patient was hospitalized after being diagnosed with COVID-19 and was suffering with post from COVID-19 syndrome such as fatigue and loss of appetite after discharge. The patient was diagnosed as Taeeumin and treated with Seunggeumjowi-tang. The progress was evaluated with the global assessment scale (GAS). Results and Conclusions Fatigue and anorexia were significantly improved, and other symptoms were restored as before. This case shows the possibility of Sasang Constitutional medication treatment for the sequelae of COVID-19.

• 한국간호교육학회지
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• 제29권1호
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• pp.109-109
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• 2023

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.523-531
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• 2021

Vietnam's Oil and gas industry make a significant contribution to the Gross Domestic Product of Vietnam. The ongoing COVID-19 pandemic has hit every industry hard, but perhaps the one industry which has taken the biggest hit is the global oil and gas industry. The purpose of this article is to examine how the COVID-19 pandemic affects the share price of the Vietnam Oil and Gas industry. The event study method applied to Oil and Gas industry index data around three event days includes: (i) The date Vietnam recognized the first patient to be COVID-19 positive was January 23, 2020; (ii) The second outbreak of COVID-19 infection in the community began on March 6, 2020; (iii) The date (30/3/2020) when Vietnam announced the COVID-19 epidemic in the whole territory. This study found that the share price of the Vietnam Oil and Gas industry responded positively after the event (iii) which is manifested by the cumulative abnormal return of CAR (0; 3] = 3.8% and statistically significant at 5 %. In the study, event (ii) has the most negative and strong impact on Oil and Gas stock prices. Events (i) favor negative effects, events (iii) favor positive effects, but abnormal return change sign quickly from positive to negative after the event date and statistically significant shows the change on investors' psychology.

• 대한한방소아과학회지
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• 제37권3호
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• pp.17-34
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• 2023

Objectives Few studies to date reviewed herbal medicines prescribed to pediatric patients with coronavirus disease 2019 (COVID-19). We aimed to summarize and analyze these herbal medicines. Methods Nine databases were searched for studies published up until November 24, 2020. Nine case reports and one case series involving 17 pediatric patients were included in the study. The clinical symptoms, interventions, outcomes, pattern identification, composition, and frequency of herbal medicine administration were analyzed. Results The symptoms of pediatric patients with COVID-19 treated with herbal medicines were mild or moderate. Herbal medicines have been used to alleviate symptoms, such as fever and cough. No adverse events were reported. All of the patients who received herbal medicines were discharged from the hospital after symptomatic relief. Pattern identification revealed that the lungs were the most affected organs. Epidemic toxins, wind, dampness, and heat were the primary etiological factors. More pediatric patients with COVID-19 were prescribed a combination of herbal and Western medicines than herbal medicines alone. The frequently used herbs include Glycyrrhizae Radix et Rhizoma, Lonicerae Flos, Scutellariae Radix, Armeniacae Semen, Citri Reticulatae Pericarpium, and Astragali Radix. Conclusions Our review can serve as a reference for the treatment of COVID-19 in children.

• 한국항만경제학회지
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• 제38권4호
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• pp.187-198
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• 2022

본 연구는 코로나 19 팬데믹의 전세계적인 확산으로 인하여 국경봉쇄와 이동제한과 같은 방역 조치와 전염병의 확산이 상품무역량을 감소시키는 원인인지를 살펴보고자 하였다. 이를 위해 한국과 주요무역 상대국의 상품무역 통계를 이용하여 중력모형 분석을 실시하였다. 분석 결과 코로나 19 확산시기인 2020년의 경우 코로나 팬데믹의 영향이 한국의 무역을 감소시키는 장애요인이라는 것을 실증적으로 확인 할 수 있었다. 그러나 2021년의 경우 팬데믹의 영향이 상품무역에 유의미한 영향을 주는 지 확인할 수 없었다. 2020년과 2021년의 코로나 19 팬데믹이 미치는 영향이 상이한 만큼 코로나 19 전염병이 안정적으로 관리되고 있는 2022년의 상품무역 상황 역시 달라질 가능성이 존재한다. 코로나에 대한 대응이나 백신의 보급 같은 요인들이 각 국가마다 상이하기 때문에 코로나 시대를 마감하는 정책 수립과정에 있어서 그러한 다양한 요인들을 충분히 고려해야 할 것으로 생각된다

• International Journal of Computer Science & Network Security
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• 제24권3호
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• pp.125-134
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• 2024

The novel coronavirus 2019 is called COVID-19 has outspread swiftly worldwide. An early diagnosis is more important to control its quick spread. Medical imaging mechanics, chest calculated tomography or chest X-ray, are playing a vital character in the identification and testing of COVID-19 in this present epidemic. Chest X-ray is cost effective method for Covid-19 detection however the manual process of x-ray analysis is time consuming given that the number of infected individuals keep growing rapidly. For this reason, it is very important to develop an automated COVID-19 detection process to control this pandemic. In this study, we address the task of automatic detection of Covid-19 by using a popular deep learning model namely the VGG19 model. We used 1300 healthy and 1300 confirmed COVID-19 chest X-ray images in this experiment. We performed three experiments by freezing different blocks and layers of VGG19 and finally, we used a machine learning classifier SVM for detecting COVID-19. In every experiment, we used a five-fold cross-validation method to train and validated the model and finally achieved 98.1% overall classification accuracy. Experimental results show that our proposed method using the deep learning-based VGG19 model can be used as a tool to aid radiologists and play a crucial role in the timely diagnosis of Covid-19.

• 한국보건간호학회지
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• 제35권1호
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• pp.33-46
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• 2021

Purpose: The purpose of this study was to understand the experiences of those who take care of the elderly at a long-term care facility during the COVID-19 pandemic. Methods: Colaizzi's phenomenological research method was applied to describe the meaning and nature of the experiences of eight workers in an elderly care facility during the COVID-19 crisis. Results: Studies have shown that these workers experienced 'fear from infectious disease' and had the opportunity to 'reflect upon life changed by infectious disease.' They also worked together to overcome the crisis by 'protect nursing home with the nurses at COVID-19 sites' and felt 'safety from the nursing home,' and experienced 'a strong sense of calling for the job' through the crisis. Conclusion: This study is the first of its kind conducted in Korea on workers in an elderly care facility. The results indicate that it is necessary to supports these workers with practical useful education, counseling, and emotional support during the epidemic.

• Journal of Preventive Medicine and Public Health
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• 제53권3호
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• pp.151-157
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• 2020

Objectives: The outbreak of coronavirus disease 2019 (COVID-19) is one of the main public health challenges currently facing the world. Because of its high transmissibility, COVID-19 has already caused extensive morbidity and mortality in many countries throughout the world. An accurate estimation of the basic reproduction number (R₀) of COVID-19 would be beneficial for prevention programs. In light of discrepancies in original research on this issue, this systematic review and meta-analysis aimed to estimate the pooled R₀ for COVID-19 in the current outbreak. Methods: International databases (including Google Scholar, Science Direct, PubMed, and Scopus) were searched to identify studies conducted regarding the R₀ of COVID-19. Articles were searched using the following keywords: "COVID-19" and "basic reproduction number" or "R₀." The heterogeneity among studies was assessed using the I² index, the Cochran Q test, and T². A random-effects model was used to estimate R₀ in this study. Results: The mean reported R₀ in the identified articles was 3.38±1.40, with a range of 1.90 to 6.49. According to the results of the random-effects model, the pooled R₀ for COVID-19 was estimated as 3.32 (95% confidence interval, 2.81 to 3.82). According to the results of the meta-regression analysis, the type of model used to estimate R₀ did not have a significant effect on heterogeneity among studies (p=0.81). Conclusions: Considering the estimated R₀ for COVID-19, reducing the number of contacts within the population is a necessary step to control the epidemic. The estimated overall R₀ was higher than the World Health Organization estimate.