Corpus overview


Overview

MeSH Disease

Human Phenotype

Diarrhea (20)

Fever (14)

Cough (13)

Fatigue (7)

Pneumonia (6)


Transmission

Seroprevalence
    displaying 1 - 10 records in total 20
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    Clinical Characteristics, Risk Factors and Predictive Value of COVID-19 Pneumonia HP: A Retrospective Study of 173 Patients in Wuhan, China

    Authors: Yang Zhang; Jun Xue; Mi Yan; Jing Chen; Hai Liu; Shao-Bo Wang; Jian-Xing Luo; Fang Yang; Jian-Yuan Tang; Xiao-Yu Hu

    doi:10.21203/rs.3.rs-76134/v1 Date: 2020-09-11 Source: ResearchSquare

    Background: COVID-19 is a globally emerging infectious disease MESHD. As the global epidemic continues to spread, the risk of COVID-19 transmission TRANS and diffusion in the world will also remain. Currently, several studies describing its clinical characteristics have focused on the initial outbreak, but rarely to the later stage. Here we described clinical characteristics, risk factors for disease severity and in-hospital outcome in patients with COVID-19 pneumonia HP pneumonia MESHD from Wuhan. Methods: Patients with COVID-19 pneumonia HP pneumonia MESHD admitted to Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology from February 13 to March 8, 2020, were retrospectively enrolled. Multivariable logistic regression analysis was used to identify risk factors for disease severity and in-hospital outcome and establish predictive models. Receiver operating characteristic (ROC) curve was used to assess the predictive value of above models.Results: 106 (61.3%) of the patients were female TRANS. The mean age TRANS of study populations was 62.0 years, of whom 73 (42.2%) had underlying comorbidities mainly including hypertension HP hypertension MESHD (24.9%). The most common symptoms on admission were fever HP fever MESHD (67.6%) and cough HP (60.1%), digestive symptoms (22.0%) was also very common. Older age TRANS (OR: 3.420; 95%Cl: 1.415-8.266; P=0.006), diarrhea HP diarrhea MESHD (OR: 0.143; 95%Cl: 0.033-0.611; P=0.009) and lymphopenia HP lymphopenia MESHD (OR: 4.769; 95%Cl: 2.019-11.266; P=0.000) were associated with severe illness on admission; the area under the ROC curve (AUC) of predictive model were 0.860 (95%CI: 0.802-0.918; P=0.000). Older age TRANS (OR: 0.309; 95%Cl: 0.142-0.674; P=0.003), leucopenia (OR: 0.165; 95%Cl: 0.034-0.793; P=0.025), increased lactic dehydrogenase (OR: 0.257; 95%Cl: 0.100-0.659; P=0.005) and interleukins-6 levels (OR: 0.294; 95%Cl: 0.099-0.872; P=0.027) were associated with poor in-hospital outcome; AUC of predictive model were 0.752 (95%CI: 0.681-0.824; P=0.000).Conclusion: Older patients with diarrhea HP diarrhea MESHD and lymphopenia HP lymphopenia MESHD need early identification and timely intervention to prevent the progression to severe COVID-19 pneumonia HP pneumonia MESHD. However, older patients with leucopenia, increased lactic dehydrogenase and interleukins-6 levels are at a high risk for poor in-hospital outcome.Trial registration: ChiCTR2000029549

    Clinical characteristics of neonates with coronavirus disease MESHD 2019 (COVID-19): a systematic review

    Authors: Yuan Hu; Jing Xiong; Yuan Shi

    doi:10.21203/rs.3.rs-50795/v1 Date: 2020-07-29 Source: ResearchSquare

    This study aimed to summarize the existing literature on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection MESHD in newborns to clarify the clinical features and outcomes of neonates with COVID-19. A systematic search was performed in PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), Wanfang Data, and VIP databases from January 1, 2019 to April 30, 2020. The references of relevant studies were also searched. A descriptive summary was organized by aspects of clinical presentations (symptoms, laboratory examinations, and imaging) and outcomes. We identified 14 studies reporting 18 newborns with COVID-19. The most common clinical manifestations were fever HP fever MESHD (62.5%), shortness of breath MESHD (50.0%), diarrhea HP diarrhea MESHD/ vomiting HP vomiting MESHD/feeding intolerance(43.8%), cough HP (37.5%), dyspnea HP dyspnea MESHD (25.0%), and nasal congestion/runny nose/ sneeze HP(25.0%). Atypical symptoms included jaundice HP jaundice MESHD and convulsion MESHD. Lymphocyte numbers decreased in 5 cases, and radiographic findings were likely to show pneumonia HP pneumonia MESHD. All newborns recovered and discharged from the hospital, and there was no death.Conclusion: Clinical symptoms of neonatal SARS-CoV-2 infection MESHD are atypical, most of them are mild. Up to now, the prognosis of newborns is good, and there is no death. Intrauterine vertical transmission TRANS is possible, but confirmed evidence is still lacking. The Long-term follow-up of potential influences of SARS-CoV-2 infection MESHD on neonates need further exploration.

    Fecal Shedding of SARS-CoV-2 and Its Potential Role in Person-To-Person Transmission TRANS and the Environment-Based Spread of COVID-19

    Authors: Davey Jones; Marcos Quintela Baluja; David Graham; Alexander Corbishley; James McDonald; Shelagh Malham; Luke Hillary; Thomas Connor; William Gaze; Ines Moura; Mark Wilcox; Kata Farkas

    id:10.20944/preprints202007.0471.v1 Date: 2020-07-20 Source: Preprints.org

    The recent detection of SARS-CoV-2 RNA in feces has led to speculation that it can be transmitted via the fecal-oral/ocular route. This review aims to critically evaluate the incidence of gastrointestinal (GI) symptoms MESHD, the quantity and infectivity of SARS-CoV-2 in feces and urine, and whether these pose an infection risk TRANS infection risk TRANS in sanitary settings, sewage networks, wastewater treatment plants, and the wider environment (e.g. rivers, lakes and marine waters). Overall, severe GI dysfunction MESHD is only evident in a small number of COVID-19 cases, with 11 ± 2% exhibiting diarrhea HP diarrhea MESHD and 12 ± 3% exhibiting vomiting and nausea HP vomiting and nausea MESHD nausea MESHD. In addition to these cases, SARS-CoV-2 RNA can be detected in feces from some asymptomatic TRANS, mildly- and pre-symptomatic individuals. Fecal shedding of the virus peaks in the symptomatic period and can persist for several weeks, but with declining abundances in the post-symptomatic phase. SARS-CoV-2 RNA is occasionally detected in urine, but reports in fecal samples are more frequent. The abundance of the virus genetic material in both urine (ca. 102-105 gc/ml) and feces (ca. 102-107 gc/ml) is much lower than in nasopharyngeal fluids (ca. 105-1011 gc/ml). There is strong evidence of multiplication of SARS-CoV-2 in the GI MESHD tract and infectious virus has occasionally been recovered from both urine and stool samples. The level and infectious capability of SARS-CoV-2 in vomit HP remain unknown. In comparison to enteric viruses transmitted via the fecal-oral route (e.g. norovirus, adenovirus), the likelihood of SARS-CoV-2 being transmitted via feces or urine appears lower due to the lower relative amounts of virus present in feces/urine. The biggest risk of transmission TRANS will occur in clinical and care home settings where secondary handling of people and urine/fecal matter occurs. In addition, while SARS-CoV-2 RNA genetic material can be detected by in wastewater, this signal is greatly reduced by conventional treatment. Our analysis also suggests the likelihood of infection MESHD due to contact with sewage-contaminated water (e.g. swimming, surfing, angling) or food (e.g. salads, shellfish) is extremely low or negligible based on very low predicted abundances and limited environmental survival of SARS-CoV-2. These conclusions are corroborated by the fact that over eight million global cases of COVID-19 have occurred, but exposure to feces or wastewater has never been implicated as a transmission TRANS vector.

    Clinical Characteristics of 107 Patients with COVID-19 in Ningbo, China: Single Center Experience Outside Hubei

    Authors: Boming Wu; Junjie Li; Hongping Xuan; Nanhong Zheng; Honghua Ye; Yaoren Hu; Tong’en Chen; Hao Ying; Lingyan Fan; Qing Xie; Zike Sheng; Yin Ying

    doi:10.21203/rs.3.rs-44830/v1 Date: 2020-07-17 Source: ResearchSquare

    Background Since December 2019, there has be an outbreak of coronavirus disease MESHD 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 MESHD (SARS-CoV-2) in Wuhan, China. Nowadays, it rapidly spread across the country and then the worldwide. We aimed to investigate the clinical characteristics of patients with COVID-19.Methods The patients with confirmed COVID-19 admitted between January 25 and February 10, 2020, were enrolled. Epidemiological, demographic, clinical, laboratory, radiological data, and antivirus therapies, were retrospectively collected and analyzed. The 90-day follow-up of these patients was also performed.Results A total of 107 patients were included. The median age TRANS was 55.0 years (range from 18.0 to 85.0 years), and 72 (67.3%) were female TRANS. Ninety-three (86.9%) of the patients had a history of contacting with residents from Wuhan (n=31), or contacting with confirmed COVID-19 patients (n=62) within 2 weeks. Fifty-eight (54.2%) had a family cluster onset. Fever HP Fever MESHD and cough HP cough MESHD were the most common symptoms. Only two patients had diarrhea HP diarrhea MESHD. The most common underlying disease was hypertension HP hypertension MESHD. Lymphopenia HP Lymphopenia MESHD was observed in 26 patients. Fifty-two patients with an elevated level of IL-6. On admission, bilateral patchy shadowing and ground-glass opacity were the typical radiological findings on chest computed tomography. Six patients had an intensive care unit (ICU) stay. Antivirus therapy was performed to all patients. 105 patients discharged with an improved condition, and no death MESHD was occurred during our 90-day follow-up for these patients.Conclusions Patients with COVID-19 in our hospital had relatively mild symptoms, and good prognosis. This study also highlights the importance of human-to-human transmission TRANS in COVID-19.

    A severe coronavirus disease MESHD 2019 patient with high-risk predisposing factors died from massive gastrointestinal bleeding MESHD: a case report

    Authors: Taojiang Chen; Qin Yang; Hongyu Duan

    doi:10.21203/rs.3.rs-45116/v1 Date: 2020-07-17 Source: ResearchSquare

    Background: SARS-CoV-2 is highly infectious and has been a significant public health threat. Despite typical manifestations of illness are dominated by respiratory symptom, some patients have concurrent gastrointestinal manifestations, including   nausea MESHD, diarrhea HP diarrhea MESHD, and vomiting HP vomiting MESHD. Massive gastrointestinal bleeding MESHD, however, has rarely been reported. Case presentation: We herein describe a case of severe SARS-CoV-2 infected MESHD patient with several risk factors for poor prognosis, including male TRANS, hypertension HP hypertension MESHD, old age TRANS, mixed bacterial infection MESHD and multilobular infiltration on radiological imaging. After improvement of respiratory status, the onset of gastrointestinal bleeding MESHD occurred, probably resulting from direct viral invasion as evidenced by the positive findings for SARS-CoV-2 in the repeat stool specimens. Although aggressive resuscitation was administered, hematochezia HP hematochezia MESHD was uncontrolled. The patient rapidly deteriorated, suffered cardiac arrest HP cardiac arrest MESHD, and expired. Conclusions: Digestive symptoms could be severe in SARS-CoV-2 infected MESHD patients, especially for the high-risk individuals with predisposing conditions. A more thorough protocol for preventing cross-infection MESHD through faecal-oral transmission TRANS should be implemented in the process of patient care and infection MESHD control.

    Prediction Model of Severe Coronavirus Disease MESHD 2019(COVID-19) Cases Shows the Leading Risk Factor of Hypocalcemia HP Hypocalcemia MESHD

    Authors: Chenchan Hu; Feifei Su; Jianyi Dai; Shushu Lu; Lianpeng Wu; Dong Chen; Qifa Song; Fan Zhou

    doi:10.21203/rs.3.rs-41318/v1 Date: 2020-07-12 Source: ResearchSquare

    Background A striking characteristic of Coronavirus Disease MESHD 2019(COVID-19) is the coexistence of clinically mild and severe cases. A comprehensive analysis of multiple risk factors predicting progression to severity is clinically meaningful. Methods The patients were classified into moderate and severe groups. The univariate regression analysis was used to identify their epidemiological and clinical features related to severity, which were used as possible risk factors and were entered into a forward-stepwise multiple logistic regression analysis to develop a multiple factor prediction model for the severe cases.Results 255 patients (mean age TRANS, 49.1±SD 14.6) were included, consisting of 184 (72.2%) moderate cases and 71 (27.8%) severe cases. The common symptoms were dry cough HP (78.0%), sputum (62.7%), and fever HP fever MESHD (59.2%). The less common symptoms were fatigue HP fatigue MESHD (29.4%), diarrhea HP diarrhea MESHD (25.9%), and dyspnea HP dyspnea MESHD (20.8%). The univariate regression analysis determined 23 possible risk factors. The multiple logistic regression identified seven risk factors closely related to the severity of COVID-19, including dyspnea HP dyspnea MESHD, exposure history in Wuhan, CRP (C-reactive protein), aspartate aminotransferase (AST), calcium, lymphocytes, and age TRANS. The probability model for predicting the severe COVID-19 was P=1/1+exp (-1.78+1.02×age+1.62×high- transmission TRANS-setting-exposure +1.77× dyspnea MESHD+1.54×CRP+1.03×lymphocyte+1.03×AST+1.76×calcium). Dyspnea HP Dyspnea MESHD (OR=5.91) and hypocalcemia HP hypocalcemia MESHD (OR=5.79) were the leading risk factors, followed by exposure to a high- transmission TRANS setting (OR=5.04), CRP (OR=4.67), AST (OR=2.81), decreased lymphocyte count (OR=2.80), and age TRANS (OR=2.78). Conclusions This quantitative prognosis prediction model can provide a theoretical basis for the early formulation of individualized diagnosis and treatment programs and prevention of severe diseases.

    Epidemiological approximation of the enteric manifestation and possible fecal-oral transmission TRANS in COVID-19: A preliminary systematic review

    Authors: Javier Pamplona, PhD; Rubén Solano, PhD; Cristina Soler, MD; Miriam Sàbat, PhD

    doi:10.21203/rs.3.rs-33873/v1 Date: 2020-06-05 Source: ResearchSquare

    Objectives: to conduct a systematic review to describe the epidemiological scientific evidence on gastrointestinal symptoms MESHD ( GIS MESHD), enteric involvement and fecal excretion of SARS-CoV-2 viral RNA and to discuss the possible fecal-oral transmission TRANS pathway of COVID-19.Methods: We have reviewed GIS MESHD, enteric involvement, and fecal test results of SARS CoV-2 from case reports and retrospective observational studies related to the digestive system published about the outbreak.Results: The prevalence SERO of GIS MESHD in patients infected with SARS CoV-2 ranges from 1.7% (1/56)-100% (10/10), GIS MESHD included diarrhea HP diarrhea MESHD 1/99(1%)-8/10(80%), nausea/vomiting HP nausea/vomiting MESHD 1/28(3.6%)-5/10 (50%), abdominal pain HP abdominal pain MESHD 2/103(1.9%)-1/3(33.3%). A total of 3% of infected MESHD patients may experience GIS MESHD in the absence of respiratory symptoms. A pooled analysis of the results showed 16.1% GIS MESHD, 8.3% diarrhea HP diarrhea MESHD and 12% nausea-vomiting HP nausea-vomiting MESHD. A higher percentage of diarrhea HP diarrhea MESHD in patients with severe disease (5.8%) than in non-severe disease (3.5%), and a more severe course in patients with GIS MESHD (22.97%) than in those without GIS MESHD (8.12%) was found. Histological studies demonstrated the presence of ACE2 receptors and the nucleocapsid of the virus in gastrointestinal. The RNA of the virus has been detected in 27-53% of patients with COVID-19 in whom respiratory and stool samples have been analyzed, and it may persist in stool for up to an average of 11.2 days after negativization of the respiratory samples.Conclusions: GIS MESHD are common in SARS CoV-2 infection MESHD at the time of patient admission, sometimes represent the only clinical manifestation. Infection of the GI MESHD tract is possible due to the presence of ACE2 receptors, and there may be viral replication with fecal elimination.

    Clinical features of COVID-19 patients in one designated medical institutions in Chengdu, China

    Authors: Gui Zhou; Yun-Hui Tan; Jiang-Cuo Luo; Yi-Xiao Lu; Jing Feng; Juan Li; Yun-Mei Yang; Long Chen; Jian-Ping Zhang

    doi:10.21203/rs.3.rs-30405/v1 Date: 2020-05-19 Source: ResearchSquare

    OBJECTIVE: To study the clinical characteristics of patients infected with the 2019 severe acute respiratory syndrome coronavirus 2 MESHD (SARS-Cov-2) responsible for coronavirus disease MESHD (COVID-2019).METHODS: Data were collected from 20 patients admitted to the Pidu District People’s Hospital in Chengdu from January 26, 2020 to March 1, 2020 with laboratory-confirmed SARS-Cov-2 infection. Clinical data were collected using the World Health Organization (WHO) nCoV CASE RECORDFORM Version 1.2 28JAN2020, which includes parameters such as: temperature, epidemiological characteristics, social network, history of exposure, and incubation period TRANS. If information was unclear, the team reviewed the original data and contacted TRANS patients directly if necessary.RESULTS: The median age TRANS of the 20 COVID-19 infected MESHD patients studied was 42.5 years. In this cohort, four patients became severely ill and one deteriorated rapidly during treatment. This patient was transferred to another medical center with an intensive care unit (ICU) for treatment. This patient died after admission to the ICU. Two of the twenty patients remained positive SARS-Cov-2 more than three weeks, and they were quarantined in a medical facility without medication. According to our analysis, all of the studied cases were infected by human-to-human transmission TRANS due to the lack of protective measures; transmission TRANS through contact within families requires confirmation. The most common symptoms at onset TRANS of illness were fever HP fever MESHD in 13 (65%) patients, cough HP in 9 (45%), headache HP headache MESHD in 3 (15%), fatigue HP fatigue MESHD in 6 (30%), diarrhea HP diarrhea MESHD in 3 (15%), and abdominal pain HP abdominal pain MESHD in 2 (10%). Six patients (30%) developed shortness of breath MESHD upon admission. The median time from exposure to onset of illness was6.5 days (interquartile range 3.25–9 days), and from the onset of symptoms TRANS to first hospital admission was 3.5 (1.25–7) days.CONCLUSION: Compared with patients infected with SARS-Cov-2 in Wuhan (up to the end of February 2020), the symptoms of patients in one hospital in Chengdu, Sichuan Province, were relatively mild and patients were discharged from the hospital after only a short stay. However, the fasting blood SERO glucose of the infected individuals was found to be slightly elevated because of the state of emergency. The dynamic changes in lymphocyte levels can predict disease status of COVID-19. They are also suggestive of changes in mean platelet volume during disease progression. This suggests that the patients had mild cases of COVID-19. However, because there is no effective drug treatment for COVID-19, it is important to detect and identify severe cases from mild cases early.

    Proposed Clinical Indicators for Efficient Screening and Testing for COVID-19 Infection from Classification and Regression Trees (CART) Analysis

    Authors: Richard K Zimmerman; Mary Patricia Nowalk; Todd Bear; Rachel Taber; Theresa M Sax; Heather Eng; Goundappa K Balasubramani

    doi:10.1101/2020.05.11.20097980 Date: 2020-05-14 Source: medRxiv

    Background: The introduction and rapid transmission TRANS of SARS CoV2 in the United States resulted in implementation of methods to assess, mitigate and contain the resulting COVID-19 disease based on limited knowledge. Screening for testing has been based on symptoms typically observed in inpatients, yet outpatient symptom complexes may differ. Methods: Classification and regression trees (CART) recursive partitioning created a decision tree classifying enrollees into laboratory- confirmed cases TRANS and non-cases. Demographic and symptom data from patients ages TRANS 18-87 years who were enrolled from March 29-April 26, 2020 were included. Presence or absence of SARSCoV2 was the target variable. Results: Of 736 tested, 55 were positive for SARS-CoV2. Cases significantly more often reported chills HP, loss of taste/smell, diarrhea HP diarrhea MESHD, fever HP fever MESHD, nausea/vomiting HP nausea/vomiting MESHD and contact with a COVID-19 case, but less frequently reported shortness of breath MESHD and sore throat. A 7-terminal node tree with a sensitivity SERO of 96% and specificity of 53%, and an AUC of 78% was developed. The positive predictive value SERO for this tree was 14% while the negative predictive value SERO was 99%. Almost half (44%) of the participants could be ruled out as likely non-cases without testing. Discussion: Among those referred for testing, negative responses to three questions could classify about half of tested persons with low risk for SARS-CoV2 and would save limited testing resources. These questions are: was the patient in contact with a COVID-19 case? Has the patient experienced 1) a loss of taste or smell; or 2) nausea or vomiting HP nausea or vomiting MESHD vomiting MESHD? The outpatient symptoms of COVID-19 appear to be broader than the well-known inpatient syndrome.

    Clinical characteristics and fecal-oral transmission TRANS potential of patients with COVID-19

    Authors: Saibin Wang; Junwei Tu; Yijun Sheng

    doi:10.1101/2020.05.02.20089094 Date: 2020-05-06 Source: medRxiv

    Background: A significant proportion of patients with COVID-19 generate negative pharyngeal swab viral nucleic acid test results but test positive using fecal samples. However, fecal-oral transmission TRANS of COVID-19 has not been established to date. The purpose of this study was to evaluate the duration of fecal swab positivity in COVID-19 patients after pharyngeal swab nucleic acid test turned negative and to explore its potential for fecal-oral transmission TRANS. Methods: A retrospective analysis of clinical records, laboratory results, and chest computed tomography (CT) findings of 17 COVID-19 patients confirmed by laboratory tests from January 22 to February 7, 2020 at a tertiary hospital was performed. The potential of fecal-oral transmission TRANS was assessed by detecting the presence of SARS-CoV-2 nucleic acid in fecal swab samples. Results: A total of 16 patients (94.1%) had fever HP fever MESHD; other symptoms included dry cough MESHD cough HP, dyspnea HP dyspnea MESHD, nausea HP nausea MESHD, diarrhea HP diarrhea MESHD, sore throat, fatigue HP fatigue MESHD, and muscle pain MESHD pain HP. Three patients had decreased white blood SERO cell counts, 7 had decreased lymphocyte numbers, and 7 had increased C-reactive protein levels. Fecal samples of 11 patients tested positive for SARS-CoV-2 nucleic acid, of whom the time for the fecal samples to become SARS-CoV-2 nucleic acid-negative was longer in 10 patients than that for pharyngeal swab samples, and only one case exhibited a shorter time for his fecal sample to become SARS-CoV-2 nucleic acid-negative compared to his pharyngeal swab sample. The remaining 6 patients were negative for SARS-CoV-2 nucleic acid in fecal samples. Conclusion: In COVID-19 patients who tested positive for SARS-CoV-2 nucleic acid in both pharyngeal swab and fecal samples, the time for the fecal samples to become SARS-CoV-2 nucleic acid-negative was generally longer than that in pharyngeal swab samples. However, there is currently no evidence demonstrating that the virus can be transmitted through the fecal-oral route.

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MeSH Disease
Human Phenotype
Transmission
Seroprevalence


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