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2019 novel coronavirus outbreak: a quiz or final exam?

Jiuyang Xu, Yijun Chen, Hao Chen, Bin Cao

《医学前沿(英文)》 2020年 第14卷 第2期   页码 225-228 doi: 10.1007/s11684-020-0753-1

摘要: The 2019 novel coronavirus (2019-nCoV) is an emerging pathogen and is threatening the global health. Strikingly, more than 28 000 cases and 550 deaths have been reported within two months from disease emergence. Armed with experience from previous epidemics in the last two decades, clinicians, scientists, officials, and citizens in China are all contributing to the prevention of further 2019-nCoV transmission. Efficient preliminary work has enabled us to understand the basic characteristics of 2019-nCoV, but there are still many unanswered questions. It is too early now to judge our performance in this outbreak. Continuous and strengthened efforts should be made not only during the epidemic, but also afterwards in order to prepare for any incoming challenges.

关键词: 2019-nCoV     novel coronavirus     epidemic     public response    

Middle East respiratory syndrome coronavirus: current situation and travel-associated concerns

null

《医学前沿(英文)》 2016年 第10卷 第2期   页码 111-119 doi: 10.1007/s11684-016-0446-y

摘要:

The emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) in 2012 brought back memories of the occurrence of severe acute respiratory syndrome coronavirus (SARS-CoV) in 2002. More than 1500 MERS-CoV cases were recorded in 42 months with a case fatality rate (CFR) of 40%. Meanwhile, 8000 cases of SARS-CoV were confirmed in six months with a CFR of 10%. The clinical presentation of MERS-CoV ranges from mild and non-specific presentation to progressive and severe pneumonia. No predictive signs or symptoms exist to differentiate MERS-CoV from community-acquired pneumonia in hospitalized patients. An apparent heterogeneity was observed in transmission. Most MERS-CoV cases were secondary to large outbreaks in healthcare settings. These cases were secondary to community-acquired cases, which may also cause family outbreaks. Travel-associated MERS infection remains low. However, the virus exhibited a clear tendency to cause large outbreaks outside the Arabian Peninsula as exemplified by the outbreak in the Republic of Korea. In this review, we summarize the current knowledge about MERS-CoV and highlight travel-related issues.

关键词: coronavirus     MERS     Middle East respiratory syndrome    

Middle East respiratory syndrome coronavirus: a comprehensive review

null

《医学前沿(英文)》 2016年 第10卷 第2期   页码 120-136 doi: 10.1007/s11684-016-0430-6

摘要:

The Middle East respiratory syndrome coronavirus was first identified in 2012 and has since then remained uncontrolled. Cases have been mostly reported in the Middle East, however travel-associated cases and outbreaks have also occurred. Nosocomial and zoonotic transmission of the virus appear to be the most important routes. The infection is severe and highly fatal thus necessitating rapid and efficacious interventions. Here, we performed a comprehensive review of published literature and summarized the epidemiology of the virus. In addition, we summarized the virological aspects of the infection and reviewed the animal models used as well as vaccination and antiviral tested against it.

关键词: MERS     coronavirus     review    

Epidemiology, pathogenesis, and management of coronavirus disease 2019-associated stroke

《医学前沿(英文)》 doi: 10.1007/s11684-023-1041-7

摘要: The coronavirus disease 2019 (COVID-19) epidemic has triggered a huge impact on healthcare, socioeconomics, and other aspects of the world over the past three years. An increasing number of studies have identified a complex relationship between COVID-19 and stroke, although active measures are being implemented to prevent disease transmission. Severe COVID-19 may be associated with an increased risk of stroke and increase the rates of disability and mortality, posing a serious challenge to acute stroke diagnosis, treatment, and care. This review aims to provide an update on the influence of COVID-19 itself or vaccines on stroke, including arterial stroke (ischemic stroke and hemorrhagic stroke) and venous stroke (cerebral venous thrombosis). Additionally, the neurovascular mechanisms involved in SARS-CoV-2 infection and the clinical characteristics of stroke in the COVID-19 setting are presented. Evidence on vaccinations, potential therapeutic approaches, and effective strategies for stroke management has been highlighted.

关键词: SARS-CoV-2     ischemic stroke     stroke     hemorrhagic stroke     cerebral venous thrombosis     vaccination    

A pilot study on Paxlovid therapy for hemodialysis patients with severe acute respiratory syndrome coronavirus

《医学前沿(英文)》 doi: 10.1007/s11684-023-1011-0

摘要: We aimed to investigate the safety and efficacy of nirmatrelvir/ritonavir (Paxlovid) therapy for hemodialysis-dependent patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Thirteen hemodialysis patients infected with the Omicron variant of SARS-CoV-2 from April 3 to May 30, 2022, were recruited. Laboratory parameters and chest CT (computed tomography) imaging were analyzed. The treatment group included six patients who received 150 mg/100 mg of Paxlovid orally once daily for 5 days, whereas the control group included seven patients who received basic treatment. No serious adverse reactions or safety events were recorded. Four control patients progressed to moderate disease, and none in the treatment group showed progression of chest CT findings (P < 0.05). Paxlovid therapy tended toward early viral clearance and low viral load on Day 8. Moreover, 83.3% of the patients in the treatment group and 57.1% of the patients in the control group turned negative within 22 days. In the Paxlovid treatment group, we found significantly increased levels of lymphocytes (P=0.03) and eosinophils (P=0.02) and decreased levels of D-dimer on Day 8 compared with those on Day 1. Paxlovid therapy showed a potential therapeutic effect with good tolerance in hemodialysis patients. The optimal dose and effectiveness evaluation must be further investigated in a largeer cohort.

关键词: Paxlovid     hemodialysis     SARS-CoV-2     viral load     chest CT scan    

Coronavirus disease 2019 (COVID-19): a clinical update

Min Zhou, Xinxin Zhang, Jieming Qu

《医学前沿(英文)》 2020年 第14卷 第2期   页码 126-135 doi: 10.1007/s11684-020-0767-8

摘要: Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has posed a significant threat to global health. It caused a total of 80 868 confirmed cases and 3101 deaths in Chinese mainland until March 8, 2020. This novel virus spread mainly through respiratory droplets and close contact. As disease progressed, a series of complications tend to develop, especially in critically ill patients. Pathological findings showed representative features of acute respiratory distress syndrome and involvement of multiple organs. Apart from supportive care, no specific treatment has been established for COVID-19. The efficacy of some promising antivirals, convalescent plasma transfusion, and tocilizumab needs to be investigated by ongoing clinical trials.

关键词: coronavirus disease 2019     epidemiology     pathology     radiology     clinical characteristics     treatment    

Middle East respiratory syndrome coronavirus in pediatrics: a report of seven cases from Saudi Arabia

Sarah H. Alfaraj, Jaffar A. Al-Tawfiq, Talal A. Altuwaijri, Ziad A. Memish

《医学前沿(英文)》 2019年 第13卷 第1期   页码 126-130 doi: 10.1007/s11684-017-0603-y

摘要: Infection with Middle East respiratory syndrome coronavirus (MERS-CoV) emerged in 2012 as an important respiratory disease with high fatality rates of 40%–60%. Despite the increased number of cases over subsequent years, the number of pediatric cases remained low. A review of studies conducted from June 2012 to April 19, 2016 reported 31 pediatric MERS-CoV cases. In this paper, we present the clinical and laboratory features of seven patients with pediatric MERS. Five patients had no underlying medical illnesses, and three patients were asymptomatic. Of the seven cases, four (57%) patients sought medical advice within 1–7 days from the onset of symptoms. The three other patients (43%) were asymptomatic and were in contact with patients with confirmed diagnosis of MERS-CoV. The most common presenting symptoms were fever (57%), cough (14%), shortness of breath (14%), vomiting (28%), and diarrhea (28%). Two (28.6%) patients had platelet counts of<150 × 10 /L, and one patient had an underlying end-stage renal disease. The remaining patients presented with normal blood count, liver function, and urea and creatinine levels. The documented MERS-CoV Ct values were 32–38 for four of the seven cases. Two patients (28.6%) had abnormal chest radiographic findings of bilateral infiltration. One patient (14.3%) required ventilator support, and two patients (28.6%) required oxygen supplementation. All the seven patients were discharged without complications.

关键词: Middle East respiratory syndrome coronavirus     MERS-CoV     pregnancy     pediatrics    

Clinical characteristics of 19 neonates born to mothers with COVID-19

Wei Liu, Jing Wang, Wenbin Li, Zhaoxian Zhou, Siying Liu, Zhihui Rong

《医学前沿(英文)》 2020年 第14卷 第2期   页码 193-198 doi: 10.1007/s11684-020-0772-y

摘要: The aim of this study was to investigate the clinical characteristics of neonates born to SARS-CoV-2 infected mothers and increase the current knowledge on the perinatal consequences of COVID-19. Nineteen neonates were admitted to Tongji Hospital from January 31 to February 29, 2020. Their mothers were clinically diagnosed or laboratory-confirmed with COVID-19. We prospectively collected and analyzed data of mothers and infants. There are 19 neonates included in the research. Among them, 10 mothers were confirmed COVID-19 by positive SARS-CoV-2 RT-PCR in throat swab, and 9 mothers were clinically diagnosed with COVID-19. Delivery occurred in an isolation room and neonates were immediately separated from the mothers and isolated for at least 14 days. No fetal distress was found. Gestational age of the neonates was 38.6±1.5 weeks, and average birth weight was 3293±425 g. SARS-CoV-2 RT-PCR in throat swab, urine, and feces of all neonates were negative. SARS-CoV-2 RT-PCR in breast milk and amniotic fluid was negative too. None of the neonates developed clinical, radiologic, hematologic, or biochemical evidence of COVID-19. No vertical transmission of SARS-CoV-2 and no perinatal complications in the third trimester were found in our study. The delivery should occur in isolation and neonates should be separated from the infected mothers and care givers.

关键词: coronavirus disease 2019     severe acute respiratory syndrome-associated coronavirus     maternal-infant infection     newborn    

Clinical manifestations and pathogen characteristics in children admitted for suspected COVID-19

Xiaofang Cai, Hanlan Jiang, Simin Zhang, Shengying Xia, Wenhui Du, Yaoling Ma, Tao Yu, Wenbin Li

《医学前沿(英文)》 2020年 第14卷 第6期   页码 776-785 doi: 10.1007/s11684-020-0820-7

摘要: Coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has spread around the world. However, approaches to distinguish COVID-19 from pneumonia caused by other pathogens have not yet been reported. We retrospectively analyzed the clinical data of 97 children with probable COVID-19. A total of 13 (13.4%) patients were confirmed positive for SARS-CoV-2 infection by nucleic acid RT-PCR testing, and 41 (42.3%) patients were found to be infected with other pathogens. Notably, no pathogen was detected in 43 (44.3%) patients. Among all patients, 25 (25.8%) had familial cluster exposure history, and 52 (53.6%) had one or more coexisting conditions. Fifteen (15.5%) patients were admitted or transferred to the PICU. In the 11 confirmed COVID-19 cases, 5 (45.5%) and 7 (63.6%) were positive for IgM and IgG against SARS-CoV-2, respectively. In 22 patients with suspected COVID-19, 1 (4.5%) was positive for IgG but negative for IgM. The most frequently detected pathogen was (29, 29.9%). One patient with confirmed COVID 19 died. Our results strongly indicated that the detection of asymptomatic COVID 19 or coexisting conditions must be strengthened in pediatric patients. These cases may be difficult to diagnose as COVID-19 unless etiologic analysis is conducted. A serologic test can be a useful adjunctive diagnostic tool in cases where SARS-CoV-2 infection is highly suspected but the nucleic acid test is negative.

关键词: coronavirus disease 2019     pediatrics     emergency     retrospective investigation     severe acute respiratory syndrome coronavirus 2    

新冠病毒变异株——新型mRNA疫苗能否经受挑战?

Jennifer Welsh

《工程(英文)》 2021年 第7卷 第6期   页码 712-714 doi: 10.1016/j.eng.2021.04.005

Interspecies transmission and evolution of the emerging coronaviruses: perspectives from bat physiology and protein spatial structure

Baicheng HUANG, Kegong TIAN

《农业科学与工程前沿(英文)》 2020年 第7卷 第2期   页码 218-226 doi: 10.15302/J-FASE-2020324

摘要:

Emergent coronaviruses (CoVs) such as SARS-CoV and MERS-CoV have posed great threats to public health worldwide over the past two decades. Currently, the emergence of SARS-CoV-2 as a pandemic causes greater public health concern. CoV diversity is due to the large size and replication mechanisms of the genomes together with having bats as their optimum natural hosts. The ecological behavior and unique immune characteristics of bats are optimal for the homologous recombination of CoVs. The relationship of spatial structural characteristics of the spike protein, a protein that is critical for recognition by host receptors, in different CoVs may provide evidence in explaining the coevolution of CoVs and their hosts. This information may help to enhance our understanding of CoV evolution and thus provide part of the basis of preparations for any future outbreaks.

关键词: bat     coronavirus     evolution     host receptor     spike protein     transmission    

中药治疗新冠病毒肺炎的科学基础 Perspective

梁丽娴, 潘胡丹, 黄虞枫, 范星星, 王婉莹, 何芳, 蔡俊, 周华, 刘良

《工程(英文)》 2020年 第6卷 第10期   页码 1099-1107 doi: 10.1016/j.eng.2020.08.009

摘要:

新近暴发的新冠病毒肺炎(COVID-19)已成为危害全球健康的紧急事件。现有证据表明,新冠病毒(SARS-CoV-2)与其他冠状病毒(如SARS-CoV和MERS-CoV)的基因序列具有相似性。因此, 针对现存冠状病毒的引发疾病的机制研究和在治疗SARS时所取得的经验和教训,可咨今天对抗新冠病毒引发疾病的参考。COVID-19患者的临床病理特征提示患者在病情进展过程中通常会经历五个发展阶段:大量病毒感染、免疫系统抑制、细胞因子风暴、多器官损伤及后期的肺纤维化样改变, 严重者常导致死亡。早期阻断疾病进展是取得治疗成功的关键。但是,目前尚无针对COVID-19的 特效药物或疫苗,世界卫生组织(WHO)正敦促尽快建立新型预防和治疗策略。传统中医药(TCM) 对于疫病的防治的实践已经积累了几千年的有用经验,它通过整体调节机体功能发挥疗效。在此次疫情中,中医药作为替代治疗或与西药联合使用,在疫情防控中发挥了重要的作用。本文总结了此次抗疫过程中中国国家和省级机构推荐使用的中药复方和中成药的潜在用途和治疗机制,以期发现其治疗COVID-19的潜在科学内涵。同时,整合应用多种组学及转化医学技术开展基础与临床研究有望进一步证实中药复方的治疗机制。

关键词: COVID-19     SARS-CoV-2     中药     抗病毒     细胞因子风暴     肺纤维化    

间充质干细胞——新冠病毒肺炎相关急性呼吸窘迫综合征潜在的治疗选择

赵璇, 张毅

《工程(英文)》 2020年 第6卷 第10期   页码 1073-1075 doi: 10.1016/j.eng.2020.05.015

Organ function support in patients with coronavirus disease 2019: Tongji experience

Yong Li, Fan He, Ning Zhou, Jia Wei, Zeyang Ding, Luyun Wang, Peng Chen, Shuiming Guo, Binhao Zhang, Xiaoning Wan, Wei Zhu, on behalf of Multidisciplinary Team for COVID-19, Optical Valley Branch of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, China

《医学前沿(英文)》 2020年 第14卷 第2期   页码 232-248 doi: 10.1007/s11684-020-0774-9

摘要: Coronavirus disease 2019 (COVID-19) is a highly contagious disease and a serious threat to human health. COVID-19 can cause multiple organ dysfunction, such as respiratory and circulatory failure, liver and kidney injury, gastrointestinal dysfunction, disseminated intravascular coagulation, and thromboembolism, and even death. The World Health Organization reports that the mortality rate of severe-type COVID-19 is over 50%. Currently, the number of severe cases worldwide has increased rapidly, but the experience in the treatment of infected patients is still limited. Given the lack of specific antiviral drugs, multi-organ function support treatment is important for patients with COVID-19. To improve the cure rate and reduce the mortality of patients with severe- and critical-type COVID-19, this paper summarizes the experience of organ function support in patients with severe- and critical-type COVID-19 in Optical Valley Branch of Tongji Hospital, Wuhan, China. This paper systematically summarizes the procedures of functional support therapies for multiple organs and systems, including respiratory, circulatory, renal, gastrointestinal, hepatic, and hematological systems, among patients with severe- and critical-type COVID-19. This paper provides a clinical reference and a new strategy for the optimal treatment of COVID-19 worldwide.

关键词: COVID-19     severe and critical type     organ function support    

Chinese herbal medicine reduces mortality in patients with severe and critical coronavirus disease 2019

Guohua Chen, Wen Su, Jiayao Yang, Dan Luo, Ping Xia, Wen Jia, Xiuyang Li, Chuan Wang, Suping Lang, Qingbin Meng, Ying Zhang, Yuhe Ke, An Fan, Shuo Yang, Yujiao Zheng, Xuepeng Fan, Jie Qiao, Fengmei Lian, Li Wei, Xiaolin Tong

《医学前沿(英文)》 2020年 第14卷 第6期   页码 752-759 doi: 10.1007/s11684-020-0813-6

摘要: This study aimed to evaluate the efficacy of Chinese herbal medicine (CHM) in patients with severe/critical coronavirus disease 2019 (COVID-19). In this retrospective study, data were collected from 662 patients with severe/critical COVID-19 who were admitted to a designated hospital to treat patients with severe COVID-19 in Wuhan before March 20, 2020. All patients were divided into an exposed group (CHM users) and a control group (non-users). After propensity score matching in a 1:1 ratio, 156 CHM users were matched by propensity score to 156 non-users. No significant differences in seven baseline clinical variables were found between the two groups of patients. All-cause mortality was reported in 13 CHM users who died and 36 non-users who died. After multivariate adjustment, the mortality risk of CHM users was reduced by 82.2% (odds ratio 0.178, 95% CI 0.076–0.418; <0.001) compared with the non-users. Secondly, age (odds ratio 1.053, 95% CI 1.023–1.084; <0.001) and the proportion of severe/critical patients (odds ratio 0.063, 95% CI 0.028–0.143; <0.001) were the risk factors of mortality. These results show that the use of CHM may reduce the mortality of patients with severe/critical COVID-19.

关键词: COVID-19     CHM     mortality     a retrospective cohort study    

标题 作者 时间 类型 操作

2019 novel coronavirus outbreak: a quiz or final exam?

Jiuyang Xu, Yijun Chen, Hao Chen, Bin Cao

期刊论文

Middle East respiratory syndrome coronavirus: current situation and travel-associated concerns

null

期刊论文

Middle East respiratory syndrome coronavirus: a comprehensive review

null

期刊论文

Epidemiology, pathogenesis, and management of coronavirus disease 2019-associated stroke

期刊论文

A pilot study on Paxlovid therapy for hemodialysis patients with severe acute respiratory syndrome coronavirus

期刊论文

Coronavirus disease 2019 (COVID-19): a clinical update

Min Zhou, Xinxin Zhang, Jieming Qu

期刊论文

Middle East respiratory syndrome coronavirus in pediatrics: a report of seven cases from Saudi Arabia

Sarah H. Alfaraj, Jaffar A. Al-Tawfiq, Talal A. Altuwaijri, Ziad A. Memish

期刊论文

Clinical characteristics of 19 neonates born to mothers with COVID-19

Wei Liu, Jing Wang, Wenbin Li, Zhaoxian Zhou, Siying Liu, Zhihui Rong

期刊论文

Clinical manifestations and pathogen characteristics in children admitted for suspected COVID-19

Xiaofang Cai, Hanlan Jiang, Simin Zhang, Shengying Xia, Wenhui Du, Yaoling Ma, Tao Yu, Wenbin Li

期刊论文

新冠病毒变异株——新型mRNA疫苗能否经受挑战?

Jennifer Welsh

期刊论文

Interspecies transmission and evolution of the emerging coronaviruses: perspectives from bat physiology and protein spatial structure

Baicheng HUANG, Kegong TIAN

期刊论文

中药治疗新冠病毒肺炎的科学基础

梁丽娴, 潘胡丹, 黄虞枫, 范星星, 王婉莹, 何芳, 蔡俊, 周华, 刘良

期刊论文

间充质干细胞——新冠病毒肺炎相关急性呼吸窘迫综合征潜在的治疗选择

赵璇, 张毅

期刊论文

Organ function support in patients with coronavirus disease 2019: Tongji experience

Yong Li, Fan He, Ning Zhou, Jia Wei, Zeyang Ding, Luyun Wang, Peng Chen, Shuiming Guo, Binhao Zhang, Xiaoning Wan, Wei Zhu, on behalf of Multidisciplinary Team for COVID-19, Optical Valley Branch of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, China

期刊论文

Chinese herbal medicine reduces mortality in patients with severe and critical coronavirus disease 2019

Guohua Chen, Wen Su, Jiayao Yang, Dan Luo, Ping Xia, Wen Jia, Xiuyang Li, Chuan Wang, Suping Lang, Qingbin Meng, Ying Zhang, Yuhe Ke, An Fan, Shuo Yang, Yujiao Zheng, Xuepeng Fan, Jie Qiao, Fengmei Lian, Li Wei, Xiaolin Tong

期刊论文