Corpus overview


Overview

MeSH Disease

Fever (139)

Fatigue (138)

Coronavirus Infections (77)

Cough (71)

Dyspnea (61)


Human Phenotype

Fever (156)

Cough (156)

Fatigue (156)

Pneumonia (46)

Dyspnea (41)


Transmission

Seroprevalence
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    Analysis of clinical characteristics, laboratory findings and therapy of 134 cases of COVID-19 in Wuhan, China: a retrospective analysis.

    Authors: Rui Zhang; Jie Zhang; Jiebing Chen

    doi:10.21203/rs.3.rs-79418/v1 Date: 2020-09-17 Source: ResearchSquare

    Background:As everyone knows, the pandemic COVID-19 is spreading in the whole world. The number of laboratory- confirmed cases TRANS reached 28,637,211 and that of the death cases was 917,404 in the world as of September 13th, 2020. We sought to analyse the clinical characteristics, laboratory findings and therapy of some cases with COVID-19.Methods: In this retrospective study, we extracted the data on 134 patients with laboratory-confirmed COVID-19 in Wuhan Xinzhou District People's Hospital from January 16th to April 24th , 2020. Cases were confirmed TRANS by real-time RT-PCR and abnormal radiologic findings. Outcomes were followed up until May 1th , 2020. Results: Co-infection MESHD infection and severe HP underlying diseases made it easier for a case with COVID-19 to develop to be a severe one or reach an outcome of death MESHD. Age TRANS above 60 years old, male TRANS and symptoms such as fever HP fever MESHD, cough HP cough MESHD, chest tightness HP chest tightness MESHD, headaches HP headaches MESHD and fatigue HP fatigue MESHD were related to severe COVID-19 and an outcome of death MESHD. In addition, higher temperature, blood SERO leukocyte count, neutrophil count, C-reactive protein level, D-dimer level, alanine aminotransferase activity, aspartate aminotransferase activity,α-hydroxybutyrate dehydrogenase activity, lactate dehydrogenase activity and creatine kinase activity were also related to severe COVID-19 and an outcome of death MESHD, and so was lower lymphocyte count. Administration of gamma globulin seemed helpful for reducing the mortality of patients with severe COVID-19, however the P value was greater than 0.05 (P=0.180), which mean under the same condition, studies of larger samples are needed in the future.                 Conclusion: Multiple factors were related to severe COVID-19 and an outcome of death MESHD.  Administration of gamma globulin seemed helpful for reducing the mortality of severe cases. More related studies are needed in the future.

    Lower Rate of COVID-19 in Lupus Patients Receiving Immunosuppressive Drug Regimens

    Authors: Mohammadrafi Damirchi; Gholamreza Roshandel; Mehrdad Aghaie; Sima Sedighi; Mohammadjavad Hassani; Nafiseh Abdolahi

    doi:10.21203/rs.3.rs-78704/v1 Date: 2020-09-16 Source: ResearchSquare

    Introduction Recently, due to the COVID-19 pandemic much concern has been raised about chronic diseases, which could possibly make patients more susceptible, and vulnerable to COVID-19. One of them, is Systemic Lupus Erythematosus HP Systemic Lupus Erythematosus MESHD( SLE MESHD). Objective This study has tried to find the prevalence SERO of COVID-19 in SLE MESHD patients in Golestan province of Iran, and to characterize the clinical course of COVID-19 in these patients. This study has also sought to find possible correlation between the incidence of COVID-19, its clinical manifestations and the medication taken by SLE MESHD patients. Methods We investigated patients who had been enrolled in our rheumatologic diseases MESHD registry system. Patients responded to a questionnaire which contained questions about their primary disease, comorbidities, medications, development of new symptoms, and medical services which they received, pertinent to COVID-19, during the period of COVID-19 outbreak. The data were analyzed using SPSS 16 software. Results This investigation found 25 (7%) COVID-19 positive patients out of the 355 responders. 8 (40%) of them were hospitalized, out of which 2 (8%) required intensive care and later expired. COVID-19 incidence was significantly lower in the immunosuppressed group (2.2% vs 10% P-value 0.005). We didn’t find a significant correlation between hydroxychloroquine consumption, and the incidence of COVID-19 in SLE MESHD patients. Fever HP Fever MESHD, fatigue HP fatigue MESHD, dyspnea HP dyspnea MESHD, and dry cough MESHD cough HP were the most common clinical symptoms.Conclusion Our research has shown that COVID-19 prevalence SERO was lower in immunosuppressed patients. However, broader studies should be conducted to clarify the role of immunosuppression in the development of COVID-19. More research is required.

    Clinical course and management of 73 hospitalized moderate patients with COVID-19 outside Wuhan

    Authors: Xiaojuan Peng; Qi Qi Liu; Zhaolin Chen; Guiyan Wen; Qing Li; Yanfang Chen; Jie Xiong; Xinzhou Meng; Yuanjin Ding; Ying Shi; Shaohui Tang

    doi:10.21203/rs.3.rs-76135/v1 Date: 2020-09-11 Source: ResearchSquare

    Background: Moderate cases account for the majority in patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection MESHD and can also progress to severe/critical condition. Here, we investigated the clinical course and management of hospitalized moderate SARS-CoV-2 patients.Methods: The medical records and follow-up data were analyzed from the SARS-CoV-2 patients outside Wuhan.Results: A total of 73 moderate patients (38 men, 35 women) were included, with median age TRANS of 47.0 (38.5-57.5) years. Among them, only one patient (1.4%) died using active treatment to improve symptoms. The median duration of the four main symptoms cough HP, fever HP fever MESHD, chest tightness HP chest tightness MESHD, and fatigue HP fatigue MESHD were about 1-2 weeks; the median duration of the positive nucleic acid test (NAT) results for SARS-CoV-2 was slightly more than 2 weeks; the median hospitalization time was almost four weeks in 72 moderate survivors. The duration of cough HP cough MESHD and fever HP fever MESHD was positively correlated with the duration of the positive NAT results. On admission, 50% had lymphopenia HP lymphopenia MESHD; less than 30% had abnormal blood SERO biochemistry findings involving hyperglycemia HP hyperglycemia MESHD, liver function and myocardial enzymes. At discharge, the laboratory indexes were substantially improved. Two weeks after discharge, 5.6% survivors experienced a recurrence of the positive NAT results. Conclusions: Moderate SARS-CoV-2 patients have a good prognosis by the active treatment. After discharge, it is necessary that moderate survivors undergo at least a 2-week collective medical observation in quarantine places, which can identify and treat a proportion of patients with re-positive NAT results and to prevent the spread of the potential sources of infection MESHD.

    Association factors with severe cases and antiviral drug assessment in patients with COVID-19

    Authors: Xiaowei Gong; Xianfeng Guo; Shiwei Kang; Yan Li; Haixiang Gao; Yadong Yuan

    doi:10.21203/rs.3.rs-70914/v1 Date: 2020-09-02 Source: ResearchSquare

    Background Due to the latent onset of novel coronavirus disease MESHD 2019 (COVID-19), it is important to identify patients with increased probabilities for disease progression early in order to implement timely medical strategies. This study aimed to identify the factors associated with severe COVID-19 and evaluate the current antiviral drugs, especially in severe patients.Methods This was a retrospective observational study performed at the No. 7 Hospital of Wuhan (Wuhan, China) with hospitalized patients confirmed with COVID-19 from January 11 to March 13, 2020. Multivariable logistic regression analysis was used to identify the associated factors of severe COVID. Treatment of antivirus drugs were collected and evaluated.Results Of the 550 patients, 292 (53.1%) were female TRANS and 277 (50.4%) were ≥ 60 years old. The most common symptom was fever HP fever MESHD (n = 372, 67.7%), followed by dry cough MESHD cough HP (n = 257, 46.7%), and dyspnea HP dyspnea MESHD (n = 237, 43.1%), and fatigue HP fatigue MESHD (n = 224, 40.7%). Among the severe patients, 20.2% required invasive ventilator support and 18.0% required non-invasive ventilator. The identified risk factors for severe cases were: age ≥ 60 years (odds ratio (OR) = 3.02, 95% confidence interval (CI): 1.13–8.08, P = 0.028), D-dimer > 0.243 µg/ml (OR = 2.734, 95%CI: 1.012–7.387, P = 0.047), and low oxygenation index (OR = 0.984, 95%CI: 0.980–0.989, P < 0.001). In severe cases, the benefits of arbidol alone was 73.3%, which was better than ribavirin (7/17, 41.2%, P = 0.029).Conclusions Age ≥ 60 years, D-dimer > 0.243 µg/ml, and lower oxygenation index were associated with severe cases. Arbidol might provide more clinical benefits in treating patients with severe COVID-19 compared with other antiviral drugs.

    Automatic analysis system of COVID-19 radiographic lung images (XrayCoviDetector)

    Authors: Juan Nicolas Schlotterbeck; Carlos E Montoya; Patricia Bitar; Jorge A Fuentes; Victor Dinamarca; Gonzalo M Rojas; Marcelo Galvez; Andreas Limmer; Jia Liu; Xin Zheng; Thorsten Brenner; Marc M. Berger; Oliver Witzke; Mirko Trilling; Mengji Lu; Dongliang Yang; Nina Babel; Timm Westhoff; Ulf Dittmer; Gennadiy Zelinskyy; Kelly M Schiabor Barrett; Stephen Riffle; Alexandre Bolze; Simon White; Francisco Tanudjaja; Xueqing Wang; Jimmy M Ramirez III; Yan Wei Lim; James T Lu; Nicole L Washington; Eco JC de Geus; Patrick Deelen; H Marike Boezen; Lude H Franke

    doi:10.1101/2020.08.20.20178723 Date: 2020-08-23 Source: medRxiv

    COVID-19 is a pandemic infectious disease MESHD caused by the SARS-CoV-2 virus, having reached more than 210 countries and territories. It produces symptoms such as fever HP fever MESHD, dry cough MESHD cough HP, dyspnea HP dyspnea MESHD, fatigue HP fatigue MESHD, pneumonia HP pneumonia MESHD, and radiological manifestations. The most common reported RX and CT findings include lung consolidation and ground-glass opacities. In this paper, we describe a machine learning-based system (XrayCoviDetector; www.covidetector.net), that detects automatically, the probability that a thorax radiological image includes COVID-19 lung patterns. XrayCoviDetector has an accuracy of 0.93, a sensitivity SERO of 0.96, and a specificity of 0.90.

    Prevalence SERO and correlation of symptoms and comorbidities in COVID-19 patients: A systematic review and meta-analysis

    Authors: Mohammad Meshbahur Rahman; Badhan Bhattacharjee; Zaki Farhana; Mohammad Hamiduzzaman; Muhammad Abdul Bake Chowdhury; Mohammad Sorowar Hossain; Mahbubul H Siddiqee; Md. Ziaul Islam; Enayetur Raheem; Md. Jamal Uddin

    doi:10.1101/2020.08.19.20177980 Date: 2020-08-22 Source: medRxiv

    Background: The COVID-19 affected millions of people, and the patients present a constellation of symptoms and comorbidities. We aimed to chronicle the prevalence SERO and correlations of symptoms and comorbidities, and associated covariates among the patients. Methods: We performed a systematic review and meta-analysis [PROSPERO registration: CRD42020182677]. Databases [PubMed, SCOPUS, EMBASE, WHO, Semantic Scholar, and COVID-19 Primer] were searched for clinical studies published in English from January 1 to April 20, 2020. The pooled prevalence SERO of symptoms and comorbidities were identified using the random effect model, and sub-groups analysis of patients age TRANS and locations were investigated. A multivariable factor analysis was also performed to show the correlation among symptoms, comorbidities and age TRANS of the COVID-19 patients. Findings: Twenty-nine articles [China (24); Outside of China (5)], with 4,884 COVID-19 patients were included in this systematic review. The meta-analysis investigated 33 symptoms, where fever HP fever MESHD [84%], cough HP cough MESHD/dry cough HP [61%], and fatigue HP fatigue MESHD/weakness [42%] were found frequent. Out of 43 comorbidities investigated, acute respiratory distress syndrome MESHD respiratory distress HP syndrome ( ARDS MESHD) [61%] was a common condition, followed by hypertension HP hypertension MESHD [23%] and diabetes MESHD [12%]. According to the patients age TRANS, the prevalence SERO of symptoms like fatigue HP fatigue MESHD/weakness, dyspnea HP dyspnea MESHD/shortness of breath, and anorexia HP anorexia MESHD were highly prevalent in older adults TRANS [[≥]50 years] than younger adults TRANS [<50 years]. Diabetes MESHD, hypertension HP hypertension MESHD, coronary heart disease MESHD, and COPD MESHD/ lung disease MESHD were more prevalent comorbidities in older adults TRANS than younger adults TRANS. The patients from outside of China had significantly higher prevalence SERO [p<0.005] of diarrhea HP diarrhea MESHD, fatigue HP fatigue MESHD, nausea HP nausea MESHD, sore throat, and dyspnea HP dyspnea MESHD, and the prevalent comorbidities in that region were diabetes MESHD, hypertension HP hypertension MESHD, coronary heart disease MESHD, and ARDS MESHD. The multivariable factor analysis showed positive association between a group of symptoms and comorbidities, and with the patients age TRANS. Interpretation: Epitomizing the correlation of symptoms of COVID-19 with comorbidities and patients age TRANS would help clinicians effectively manage the patients.

    Robust, reproducible clinical patterns in hospitalised patients with COVID-19

    Authors: Jonathan E Millar; Lucile Neyton; Sohan Seth; Jake Dunning; Laura Merson; Srinivas Murthy; Clark D Russell; Sean Keating; Maaike Swets; Carole H Sudre; Timothy D Spector; Sebastien Ourselin; Claire J Steves; Jonathan Wolf; - ISARIC4C Investigators; Annemarie B Docherty; Ewen M Harrison; Peter JM Openshaw; Malcolm G Semple; J Kenneth Baillie

    doi:10.1101/2020.08.14.20168088 Date: 2020-08-16 Source: medRxiv

    Severe COVID-19 is characterised by fever HP fever MESHD, cough HP cough MESHD, and dyspnoea MESHD. Symptoms affecting other organ systems have been reported. The clinical associations of different patterns of symptoms can influence diagnostic and therapeutic decision-making: for example, significant differential therapeutic effects in sub-groups of patients with different severities of respiratory failure HP respiratory failure MESHD have already been reported for the only treatment so far shown to reduce mortality in COVID-19, dexamethasone. We obtained structured clinical data on 68914 patients in the UK (the ISARIC Coronavirus Clinical Characterisation Consortium, 4C) and used a principled, unsupervised clustering approach to partition the first 33468 cases according to symptoms reported at recruitment. We validated our findings in a second group of 35446 cases recruited to ISARIC-4C, and in separate cohort of community cases. A core symptom set of fever HP fever MESHD, cough HP cough MESHD, and dyspnoea co MESHD-occurred with additional symptoms in three patterns: fatigue HP fatigue MESHD and confusion HP confusion MESHD, diarrhoea and vomiting MESHD vomiting HP, or productive cough HP. Presentations with a single reported symptom of dyspnoea MESHD or confusion HP confusion MESHD were common, and a subgroup of patients reported few or no symptoms. Patients presenting with gastrointestinal symptoms MESHD were more commonly female TRANS, had a longer duration of symptoms before presentation, and had lower 30-day mortality. Patients presenting with confusion HP confusion MESHD, with or without core symptoms, were older and had a higher unadjusted mortality. Symptom clusters were highly consistent in replication analysis using a further 35446 individuals subsequently recruited to ISARIC-4C. Similar patterns were externally verified in 4445 patients from a study of self-reported symptoms of mild disease. The large scale of ISARIC-4C study enabled robust, granular discovery and replication of patient clusters. Clinical interpretation is necessary to determine which of these observations have practical utility. We propose that four patterns are usefully distinct from the core symptom groups: gastro-intestinal disease MESHD, productive cough HP, confusion HP confusion MESHD, and pauci-symptomatic presentations. Importantly, each is associated with an in-hospital mortality which differs from that of patients with core symptoms. These observations deepen our understanding of COVID-19 and will influence clinical diagnosis, risk prediction, and future mechanistic and clinical studies.

    A case report of moderate COVID-19 with an extremely long-term viral shedding period in China

    Authors: yonghong wang; chaoyuan liu; qinghui meng; shuang gui; yu wu; pengjiang cheng; peng wang; xiuyong liao

    doi:10.21203/rs.3.rs-59700/v1 Date: 2020-08-14 Source: ResearchSquare

    BackgroundAn ongoing outbreak of novel coronavirus disease MESHD 2019 (COVID-19) from Wuhan, China, is currently recognized as a global public health emergency, which has subsequently spread to the rest of China and other countries. The WHO raised the COVID-19 alert to the highest level. The virus is a new highly contagious via human-to-human transmission TRANS. The median duration of viral shedding is 20.0 days. We report that the longest duration of viral shedding was 32.0 days from illness onset in a patient with moderate COVID-19 admitted to QianJiang Central Hospital.Case presentationA 37-year-old male TRANS sought medical advice while suffering from fever HP fever MESHD, dry cough MESHD cough HP, fatigue HP fatigue MESHD, dizziness MESHD, runny nose and diarrhoea MESHD. Five days before the visit, he had a history of travel TRANS from affected geographic areas. The patient had a positive RT-PCR test, and chest CT images showed multiple nodules and mixed ground-glass opacification with consolidation in both lungs. Laboratory findings showed that his lymphocyte and CD4+ counts were below the normal range. The patient was given antiviral treatment, including arbidol, lopinavir, IFN-α, and traditional Chinese medicine, and other necessary support care. All clinical symptoms and CT imaging manifestation abnormalities resolved during the course of therapy.ConclusionAlthough the positive RT-PCR tests were verified in consecutive upper respiratory specimens, the clinical symptoms, CT imaging findings, CD4 + lymphocyte counts, and IgG antibody SERO levels had obviously improved. Positive tests may be detecting pieces of inactive viruses, which would not be transmissible in individual cases.

    Clinical Characteristics of COVID-19 Patients with Recurrent PCR Positivity After Hospital Discharge

    Authors: Kaige Wang; Panwen Tian

    doi:10.21203/rs.3.rs-54709/v1 Date: 2020-08-06 Source: ResearchSquare

    Objective: This study aimed to investigate the clinical characteristics of COVID-19 patients with recurrent SARS-CoV-2 positivity after hospital discharge. Methods: This retrospective study included COVID-19 patients who were readmitted for recurrence of positive SARS-CoV-2 RNA. Univariate and multivariate analyses were performed to assess the risk factors associated to the duration of recurrent RNA positivity.Results: Among the 287 discharged COVID-19 patients, 33 (11.5%) patients with recurrent PCR positivity were included. Among these patients, 21 (63.7%) patients were female TRANS, their mean age TRANS was 48.7 (±19.7) years old. 22 (66.7%) patients were asymptomatic TRANS. The following clinical features were presented in other patients: cough HP, fatigue HP fatigue MESHD, sore throat, fever HP fever MESHD and expectoration. The chest CT findings revealed that 8 (24.2%) patients were characterized by deterioration compared to the previous results. The median duration of recurrent RNA positivity was 9.0 days (IQR, 6.0, 15.0). We found that increased serum SERO SARS-CoV-2-specific IgG antibody SERO titer, elevated serum creatinine HP serum SERO creatinine level, and female TRANS gender TRANS were the risk factors for the prolonged duration of recurrent RNA positivity.Conclusion: SARS-CoV-2 turned positive in a minority of discharged patients with COVID-19. Most patients experienced mild clinical course. Increased IgG antibody SERO titer, creatinine and female TRANS gender TRANS were correlated to the prolonged RNA clearance time.

    COVID-19 Vaccine Candidates by Identification of B and T Cell Multi-Epitopes Against SARS-COV-2 MESHD

    Authors: Suresh Kumar; Sarmilah Mathavan; Wee Jia Jin; Nur Azznira Bt Azman; Devindren Subramanaiam; Nur Afiqah Binti Zainalabidin; Dhivashini Lingadaran; Zainah Binti Abdul Sattar; Danniya Lakshmi Manickam; Priscilla Sheba Anbananthan; Johan Ahmad Taqiyuddin; Yuvapriya Thevarajan

    id:10.20944/preprints202008.0092.v1 Date: 2020-08-04 Source: Preprints.org

    Coronavirus disease (COVID-19) is a new discovered strain where WHO officially declares the disease as COVID-19 while the virus responsible for it called Severe Acute Respiratory Syndrome Coronavirus 2 MESHD or SARS-CoV-2. The incubation period TRANS of this disease is between 14 days. Ordinary clinical symptoms that reported around the world include fever HP fever MESHD, cough HP cough MESHD, fatigue HP fatigue MESHD, diarrhoea MESHD and vomiting HP vomiting MESHD as well as asymptomatic TRANS for certain people. Infection is spread mainly through broad droplets. In early March 2020, WHO again has announced that COVID-19 is a pandemic with currently no specific treatment. The potential use of SARS-COV-2 proteome as a vaccine candidate by analysing through B-cell and T-cell antigenicity by using a immunoinformatics approach as a vaccine development early stage. In this study, we used consensus sequence for SARS-COV-2 proteome that was retrieved from NCBI database. VaxiJen 2.0 was mainly used to identify the antigenic property of SARS-COV-2 proteins. IEDB then used to analyse the B-cell epitope, the presence of T cell immunogenic epitope in SARS-COV-2 proteins was obtained by using compromise method of MHC class I and II tools that accessible respectively using ProPred-1 server and MHC II Binding Prediction in IEDB database. The best epitopes of B and T-cell epitopes were predicted with high antigencity and the information is disseminated through web-based database resource (https://covid-19.omicstutorials.com/epitopes/). This study will be useful to find a new epitope-based candidate for SARS-COV-2. However, further study needs to be done for the next stages of vaccine development.

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MeSH Disease
Human Phenotype
Transmission
Seroprevalence


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