Corpus overview


Overview

MeSH Disease

Human Phenotype

Fever (61)

Cough (43)

Fatigue (16)

Pneumonia (15)

Lymphopenia (10)


Transmission

Seroprevalence
    displaying 1 - 10 records in total 61
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    The Immune-Buffer COVID-19 Exit Strategy that Protects the Elderly TRANS

    Authors: Vered Rom-Kedar; Omer Yaniv; Roy Malka; Ehud Shapiro; Nimai Chandra Mandal; Panchanan Kundu; Subhadip Bhunia; Soham Sarangi; Vladimir Volynkin; Hermann Zellner; Rengul Cetin-Atalay; Maria Martin; Volkan Atalay; Makoto Miyara; Guy Gorochov; Amelie Guihot; Christophe Combadiere; Duraipandian Thavaselvam; Devendra Kumar Dubey; Paul Lin; Hila Shaim; Sean G Yates; David Marin; Indreshpal Kaur; Sheetal Rao; Duncan Mak; Angelique Lin; Qi Miao; Jinzhuang Dou; Ken Chen; Richard Champlin; Elizabeth J Shpall; Katayoun Rezvani

    doi:10.1101/2020.09.12.20193094 Date: 2020-09-14 Source: medRxiv

    COVID-19 is a viral respiratory illness MESHD, caused by the SARS-CoV-2 virus with frequent symptoms of fever HP fever MESHD and shortness of breath MESHD. COVID-19 has a high mortality rate among elders. The virus has spread world-wide, leading to shut-down of many countries around the globe with the aim of stopping the spread of the disease TRANS. To date, there are uncertainties regarding the main factors in the disease spread TRANS, so sever social distancing measures and broad testing are required in order to protect the population at risk. With the increasing spread of the virus, there is growing fraction of the general population that may be immune to COVID-19, following infection. This immunised cohort can be uncovered via large-scale screening for the SARS-CoV-2 (Corona) virus and/or its antibodies SERO. We propose that this immune cohort be deployed as a buffer between the general population and the population most at risk from the disease. Here we show that under a broad range of realistic scenarios deploying such an immunized buffer between the general population and the population at risk may lead to a dramatic reduction in the number of deaths from the disease. This provides an impetus for: screening for the SARS-CoV-2 virus and/or its antibodies SERO on the largest scale possible, and organizing at the family, community, national and international levels to protect vulnerable populations by deploying immunized buffers between them and the general population wherever possible.

    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

    Healthcare workers in elderly TRANS care: a source of silent SARS-CoV-2 transmission TRANS?

    Authors: Mirjam Jeanne Dorine Dautzenberg; Andrea Eikelenboom-Boskamp; Jacqueline Janssen; Miranda Drabbe; Ewoud de Jong; Eefke Weesendorp; Marion Koopmans; Andreas Voss; Matthew Hickman; Ellen Brooks Pollock; Jan Lukas Robertus; Maria Gabrani; Michal Rosen-Zvi

    doi:10.1101/2020.09.07.20178731 Date: 2020-09-09 Source: medRxiv

    Importance: Healthcare workers (HCWs), including those with mild symptoms, may be an important source of COVID-19 within elderly TRANS care. Objective: To gain insight into the spread of SARS-CoV-2 among HCWs working in elderly TRANS care settings. Design: Cross-sectional study among HCWs working in elderly TRANS care in the South-East of the Netherlands, testing for SARS-CoV-2, between March 31 and April 17, 2020. Setting: HCWs working in geriatric rehabilitation, somatic and psychogeriatric wards or small-scale living groups and district nursing, with a total of 5245 HCWs within 4 organisations. Participants: 621 HCWs with mild respiratory symptoms. Main Outcomes: Number of HCWs testing positive for SARS-CoV-2 in pharyngeal swabs, using real-time reverse-transcriptase PCR targeting the SARS-CoV-2 E-gene, N-gene, and RdRP. HCWs filled out a survey to collect information on symptoms and possible sources of infection MESHD. Results: 133/615 (21.6%) HCWs tested positive for SARS-CoV-2, ranging from 15.6 to 44.4% per elderly TRANS care organisation, and from 0 to 64.3% per separate location of the organizations, respectively. 74.6% of tested HCWs were nursing staff, 1.7% elderly TRANS care physicians, 20.3% other HCWs with patient contact and 3.4% HCWs without patient contact. In the univariate analysis, fever HP fever MESHD, runny or stuffy nose, anosmia HP anosmia MESHD, general malaise, myalgia HP myalgia MESHD, headache HP headache MESHD and ocular pain HP ocular pain MESHD were associated with SARS-CoV-2 positivity, while gastro-intestinal symptoms and respiratory symptoms, other than runny or stuffy nose were not. Risk factors for SARS-CoV-2 positivity were contact with patients or colleagues with suspected or proven COVID-19. Whole genome sequencing of 22 samples in 2 facilities strongly suggests spread within facilities. Conclusions and Relevance: We found a high SARS-CoV-2 prevalence SERO among HCWs in nursing homes and district nursing, supporting the hypothesis of undetected spread within elderly TRANS care facilities. Structural testing of elderly TRANS care HCWs, including track and trace of contacts TRANS, should be performed to control this spread, even when only mild symptoms are present.

    Kawasaki Disease MESHD Outbreak in Children TRANS During COVID-19 Pandemic.

    Authors: Ewelina Gowin; Jacek Wysocki; Magdalena Frydrychowicz; Danuta Januszkiewicz-Lewandowska

    doi:10.21203/rs.3.rs-70123/v1 Date: 2020-09-01 Source: ResearchSquare

    BackgroundIn response to the recent information about the outbreak of Kawasaki disease MESHD ( KD MESHD) in children TRANS connected to SARS-Cov-2 pandemic, we would like to present a group of six patients hospitalized from March to May 2020 with an inflammatory disease similar to KD MESHD. Findings There were four girls and two boys, aged TRANS from 15 months to 16 years. They all presented with fever HP fever MESHD lasting at least five days, irritability HP irritability MESHD, bilateral nonexudative conjunctivitis HP conjunctivitis MESHD, lymphadenopathy, mucus membrane changes, rash MESHD, edema HP edema MESHD.Neither the patients nor the other members of the patients' households had a positive history of COVID-19 infection MESHD. None of the six children TRANS had a positive PCR result for SARS-CoV-2 or a positive results for antibodies to SARS-CoV-2 SERO. All patients received empiric antibiotic therapy. Four patients were diagnosed with KD MESHD. Three children TRANS received standard treatment. One boy did not respond and received an additional 14-days course of methylprednisolone.In two girls, the diagnosis of KD MESHD was not made. All patients survived ConclusionFinding a correlation with the Covid-19 pandemic is difficult regarding the situation in our country. According to ECDC, in May 2020 Poland wass still before the peak of the epidemy. The intention of this article is to report that increased hospitalization of children TRANS with the inflammatory syndrome MESHD is also observed in countries with low levels of transmission TRANS of the SARS-Cov-2 virus. Our observation may broaden the knowledge of new inflammatory syndrome MESHD, which is not necessarily caused by SARS-Cov-2 but may be worsened by co-infection MESHD.

    Transmission TRANS Dynamics of SARS-CoV-2 in a Mid-size City of China

    Authors: Hongjun Zhao; Xiaoxiao Lu; Wenhui Lun; Tiegang Li; Boqi Rao; Dedong Wang; Di Wu; Fuman Qiu; Zhicong Yang; Lu Jiachun

    doi:10.21203/rs.3.rs-59402/v1 Date: 2020-08-14 Source: ResearchSquare

    Background: An outbreak of pneumonia HP pneumonia MESHD associated with the severe acute respiratory syndrome coronavirus 2 MESHD (SARS-CoV-2) emerged in Wuhan city and then spread to other cities. It is very urgent to delineate the epidemiological and clinical characteristics of these affected patients. Methods: To investigate the epidemiological characteristics of the COVID-19, we describe a case series of 473 patients with confirmed COVID-19 in Wenzhou of China from January 27 to March 2, 2020.Results: The median age TRANS of all patients was 47.6 years, 48.4% of which were female TRANS. 33.8% of the patients had a history of residence in Wuhan. Fever HP Fever MESHD (71.7%) and cough HP (43.1%) were the most common symptoms. In addition, three kinds of unconventional cases were observed, namely 4.9% asymptomatic TRANS patients, 7.6% confirmed patients who had no link to Wuhan city but contact with individuals from Wuhan without any symptoms at the time of contact, and 12.9% confirmed patients who had an unknown source of transmission TRANS. We estimated that the basic reproductive number TRANS ( R0 TRANS) was 2.75 (95%CI: 2.37-3.23). The effective reproduction number TRANS (Rt) fluctuated within the range of 2.50 to 3.74 from January 11 to January 16 while gradually reached the peak of 3.74 on January 16. Rt gradually decreased after January 16 and decreased to 1.00 on January 30. Rt continually decreased and reached the lowest point (0.03) on February 21, 2020.Conclusion: Our findings presented the possibility of asymptomatic TRANS carriers TRANS affected with SARS-CoV-2, and this phenomenon suggested that chances of uncontrollable transmission TRANS in the larger population might be higher than formerly estimated, and transmission TRANS by these three kinds of unconventional patients in Wenzhou may be an important characteristic of infection MESHD in other mid-sized cities in the world. This study evaluated the epidemic characteristics of Wenzhou after having cases imported from Hubei Province and the effects after adopting a series of strict prevention and control strategy. 

    High Number of RNA Copies in Asymptomatic TRANS Individuals Infected with SARS-CoV-2 in an Area of the Colombian Caribbean

    Authors: Salim Mattar; Caty Martinez-Bravo; Ricardo Rivero; Hector Contreras; Alvaro Faccini_Martinez; Camilo Guzman; Ketty Galeano; Nelson Alvis; Veronica Contreras; German Arrieta; Marco Gonzalez; Jorge Miranda; Martha Lucia Ospina; Francisco Camargo-Assis; Marcela Mercado-Reyes; Evelyn Garay; Alejandra Garcia-Perez; Yesica Lopez; Vaneza Tique

    doi:10.21203/rs.3.rs-57254/v1 Date: 2020-08-11 Source: ResearchSquare

    Background.   Severe acute respiratory syndrome MESHD Coronavirus 2 (SARS-CoV-2) is an emerging pandemical virus. The virus has caused millions of reported cases and hundreds of thousands of deaths in less than six months. South America has suffered the pandemic because it lacks the hospital and economic capacities needed to contain the pandemic's advance. Public health implications of transmission TRANS, while asymptomatic TRANS is a critical concern at the current pandemic.Objective: Describe the socio-demographic, clinical, and viral kinetics features of a cohort of SARS-CoV-2 infected MESHD individuals from the Colombian Caribbean. Methods: Six hundred eighty-six clinical samples from several hospital centers in the province were received between April 9th and May 16th, 2020. RNA was extracted using lysis buffers and spin columns. The samples were tested for SARS-CoV-2 by RT-qPCR (Reverse transcription real-time polymerase chain reaction) using commercially available multiplex real-time PCR assay for simultaneous detection of 3 target genes of SARS-CoV-2 (AllplexTM, 2019-nCoV assay, Korea). Viral copies quantification was done using a standard curve constructed from seriated dilutions of a SARS-CoV-2 positive control. Statics descriptive methods were used. Results: Thirty-five nasopharyngeal samples were positive for SARS-CoV-2 infection MESHD; the average age TRANS was 43 (range, 1-95 years). Seventeen of 35 (49%) of the patients showed symptoms. Most of them had cough HP, fever HP fever MESHD, and odynophagia HP, 3 of the patients reported having arthralgia HP arthralgia MESHD. Only two patients required hospitalization. None of the patients had known co-morbidities. RT-qPCR results show that two of the symptomatic patients had significantly higher RNA copies than the rest of them. Eighteen of 35 (51%) individuals were asymptomatic TRANS, the average age TRANS was 30 (range, 6-61 years. Four individuals showed a higher copy than some symptomatic patients. Nonetheless, the average of RNA copies 8.26 x10+10 was lower than the symptomatic.Conclusions: the population studied was young, with an average of 43 years in symptomatic and 30 years of asymptomatic TRANS; this is important because of the high impact in the economy. It is probably the cause of the reduced lethality observed in the department. Because a large proportion of infections probably result from transmission TRANS from asymptomatic TRANS, pre-symptomatic persons. The usefulness of public health interventions in Colombian provinces should be based on molecular screening in a vast conglomerate population and quantify the viral load. 

    High number of RNA copies in asymptomatic TRANS individuals infected with SARS-CoV-2 in an area of the Colombian Caribbean

    Authors: Salim Mattar; Caty Martinez-Bravo; Ricardo Rivero; Hector Contreras; Alvaro Faccini_Martinez; Camilo Guzman; Ketty Galeano; Nelson Alvis; Veronica Contreras; German Arrieta; Marco Gonzalez; Jorge Miranda; Martha Lucia Ospina; Francisco Camargo-Assis; Marcela Mercado-Reyes; Evelyn Garay; Alejandra Garcia-Perez; Yesica Lopez; Vaneza Tique

    doi:10.21203/rs.3.rs-57254/v2 Date: 2020-08-11 Source: ResearchSquare

    Background.   Severe acute respiratory syndrome MESHD Coronavirus 2 (SARS-CoV-2) is an emerging viral pandemic disease MESHD. In the last six months, SARS-CoV-2 has caused millions of reported cases and hundreds of thousands of deaths. As other world regions, nowadays, South America has not contained the pandemic's advance since it lacks the hospital and economic capacities. Public health implications of transmission TRANS, while the asymptomatic TRANS infection is a critical concern at the current pandemic.Objective: Describe the socio-demographic, clinical, and viral kinetics features of a cohort of SARS-CoV-2 infected MESHD individuals from the Colombian Caribbean. Methods: Six hundred eighty-six clinical samples of suspected SARS-CoV-2 infection MESHD cases and contacts individuals from several hospital centers in the department of Córdoba, Colombia, were received at our laboratory between April 9th and May 16th, 2020. RNA was extracted using lysis buffers and spin columns. The samples were tested for SARS-CoV-2 by RT-qPCR (Reverse transcription real-time polymerase chain reaction) using commercially available multiplex real-time PCR assay for simultaneous detection of 3 target genes of SARS-CoV-2 (AllplexTM, 2019-nCoV assay, Korea). Viral copies quantification was done using a standard curve constructed from seriated dilutions of a SARS-CoV-2 positive control. Statics descriptive methods were used. Results: Thirty-five nasopharyngeal samples were positive for SARS-CoV-2 infection MESHD; the average age TRANS was 43 (range, 1-95 years). Seventeen of 35 (49%) of the patients showed symptoms. Most of them had a cough HP, fever HP fever MESHD, and odynophagia HP; three of the patients reported having arthralgia HP arthralgia MESHD. Only two patients required hospitalization. None of the patients had known co-morbidities. RT-qPCR results show that two of the symptomatic patients had significantly higher RNA copies than the rest. Eighteen of 35 (51%) individuals were asymptomatic TRANS, and the average age TRANS was 30 (range, 6-61 years). Four asymptomatic TRANS individuals showed a higher copy than some symptomatic patients; nonetheless, the average of RNA copies 8.26 x10+10 was lower than the symptomatic.Conclusions: the population studied was young, with an average of 43 years in symptomatic and 30 years of asymptomatic TRANS; this is important because of the high impact in the economy. Because a large proportion of infections may result from transmission TRANS from asymptomatic TRANS or pre-symptomatic persons, the usefulness of public health interventions in Colombian provinces should be based on molecular screening in a vast conglomerate population and quantify the viral load. 

    Materno-fœtal outcomes of COVID-19 Pregnant Women Followed-up at a Tertiary Care Unit in sub-Saharan Africa: a descriptive study.

    Authors: Madye Ange Ngo Dingom; Eugène Sobngwi; Félix Essiben; Antoinette N. Assiga; Yves F. Wasnyo; Anicet Ngate; Jean C. Katte; Junie Y. Ngaha; Philemon Nsem; Charles E. Sone; Brigitte Wandji; Gilles T. Libend; Jean J. Bissemou; Filbert E. Eko; Florent Y. Fouelifack; Glwadys Ngono; Jeanne Fouedjio; Rebecca Tonye; Pierre Ongolo-Zogo; Pierre J. Fouda; Robinson E. Mbu

    doi:10.21203/rs.3.rs-55942/v1 Date: 2020-08-08 Source: ResearchSquare

    Background: The SARS-CoV-2 and associated corona virus disease COVID-19 has been declared a pandemic having a poor prognosis among individuals with debilitating conditions and those who are immune compromised. Current evidence is however limited on materno-fetal transmission TRANS and pregnancy outcomes. We aimed to describe the pattern of SARS-CoV-2 infection MESHD and outcomes in a group of pregnant women followed-up at a tertiary care unit in Cameroon. Methods: This was an observational study conducted over a period of 3 months (April 1 to June 30, 2020) at the Yaounde Central Hospital. All pregnant women who were tested positive for SARS-CoV-2 and who provided a signed written informed consent were included in the study. Results: Out of 83 pregnant women who presented with symptoms suspicious of COVID-19, 25 were tested positive.  The median age TRANS of these women was 31 (27 – 35) years. A total of 76% consulted within 6 days of onset of symptoms TRANS and 68% had a gestational age TRANS greater than 28 weeks. The most common presenting complaint was fever HP fever MESHD (88%). All 25 pregnant women who tested positve for COVID-19 were followed up with 9/25  deliveries registered. There were two intra-uterine fœtal death and seven live births. All the live birth babies tested negative on Real Time-Polymerase Chain Reaction (RT-PCR) testing which was performed after birth. Conclusion: Deliverance of live and SARS-CoV-2 negative babies from COVID-19 pregnant women is possible.

    Epidemiological Characteristics of COVID-19 and Efforts to Prevent Community Transmission TRANS: The Sri Lankan Experience

    Authors: Manjula Kariyawasam; Sashimali Wickramasinghe; Samitha Ginige; Sudath Samaraweera; Paba Palihawadana; Thilanga Ruwanpathirana; Chintha Jayasinghe; Hathshya Munasingha; Alinda Perera; Thiraj Haputhanthri; Deepa Gamage

    doi:10.21203/rs.3.rs-54255/v1 Date: 2020-08-05 Source: ResearchSquare

    Background – With the onset of COVID-19 pandemic, the government of Sri Lanka took proactive measures to prevent a community outbreak in the country. This paper describes the measures taken by the government in the initial stages to contain the virus, along with the epidemiological characteristics of the first 200 laboratory confirmed COVID-19 patients.Methods – Telephone interviews were conducted for first 200 consecutive patients diagnosed with COVID-19, after obtaining informed verbal consent. Descriptive data are presented as binary variables and in frequency distribution tables.Results- From the diagnosis of the first patient, 76 days elapsed for the first 200 patients to be diagnosed. Majority were males TRANS in the 40-49 age group TRANS. There were three foreign nationals, while others were Sri Lankans. Among the Sri Lankans, 81 (41.1%) had an overseas travel TRANS history. Following implementation of the cohort quarantine concept, 47% of the overseas returnees were reported from quarantine centres. Over two-thirds of the patients presented with symptoms (n=137, 68.5%) and the most common symptoms were fever HP fever MESHD, cough HP cough MESHD and sore throat. The case fatality rate for the sample was 3.5%. out of the 200 patients, 103 (51.5%) were primary patients, while 92 (46%) were secondary patients. The source of exposure could not be determined for five patients. Conclusions – Due to measures instigated by the government, such as cohort quarantining, extensive contact tracing TRANS and testing of close contacts TRANS, Sri Lanka was able to prevent a wide spread community outbreak of COVID-19.

    Examining Australian's beliefs, misconceptions, and sources of information for COVID-19: A national online survey

    Authors: Rae Thomas; Hannah Greenwood; Zoe A Michaleff; Eman Abukmail; Tammy Hoffmann; Kirsten J McCaffery; Leah Hardiman; Paul Glasziou

    doi:10.1101/2020.07.27.20163204 Date: 2020-07-29 Source: medRxiv

    Objective: Public cooperation to practice preventive health behaviours is essential to manage the transmission TRANS of infectious diseases MESHD such as COVID-19. We aimed to investigate beliefs about COVID-19 diagnosis, transmission TRANS and prevention that have the potential to impact the uptake of recommended public health strategies. Design: An online cross-sectional survey conducted May 8 to May 11 2020. Participants: A national sample of 1500 Australian adults TRANS with representative quotas for age TRANS and gender TRANS provided by online panel provider. Main outcome measure: Proportion of participants with correct/incorrect knowledge of COVID-19 preventive behaviours and reasons for misconceptions. Results: Of the 1802 potential participants contacted, 289 were excluded, 13 declined, and 1500 participated in the survey (response rate 83%). Most participants correctly identified washing your hands regularly with soap and water (92%) and staying at least 1.5m away from others (90%) could help prevent COVID-19. Over 40% (incorrectly) considered wearing gloves outside of the home would prevent them contracting COVID-19. Views about face masks were divided. Only 66% of participants correctly identified that regular use of antibiotics would not prevent COVID-19. Most participants (90%) identified fever HP fever MESHD, fatigue HP fatigue MESHD and cough HP as indicators of COVID-19. However, 42% of participants thought that being unable to hold your breath for 10 seconds without coughing HP was an indicator of having the virus. The most frequently reported sources of COVID-19 information were commercial television channels (56%), the Australian Broadcasting Corporation (43%), and the Australian Government COVID-19 information app (31%). Conclusions: Public messaging about hand hygiene and physical distancing to prevent transmission TRANS appear to have been effective. However, there are clear, identified barriers for many individuals that have the potential to impede uptake or maintenance of these behaviours in the long-term. Currently these non-drug interventions are our only effective strategy to combat this pandemic. Ensuring ongoing adherence to is critical.

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MeSH Disease
Human Phenotype
Transmission
Seroprevalence


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