International Journal of Coronaviruses最新文献

{"title":"What do we know about Eye and Facial Protectors : Review for COVID-19 Pandemic and Possible Future Epidemics","authors":"Hadi Jalilvand, M. Meshkini, F. Meshkini, Nayyereh Valikhanlou","doi":"10.14302/issn.2692-1537.ijcv-21-3919","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3919","url":null,"abstract":"Personal Protective Equipment (PPE) is mandatory for everybody in a threatening state, they are meant to provide safety and prevent injuries especially in hazardous issues. Facial guards are mostly used for providing eyes and face from splash-kind of hazards. During the COVID-19 pandemic, their use also was recommended to longer the use of masks or respirators, due to their shortage and the excessive demand of their reuse. This review gathered information on eye and face protectors from various manufacturer, international and local guidelines; also authors’ experiment during the COVID-19 pandemic in Iran.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130509377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identify the Effects of Ultra Weak Light on Alphacoronavirus and Vero Cells","authors":"H. Chung, V. Nguyen, Hai-Quynh Do, M. Park, Jeong Su Yang, B. Park, W. Jung, Y. Park","doi":"10.14302/issn.2692-1537.ijcv-21-3934","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3934","url":null,"abstract":"Coronavirus is causing many diseases and economic pain to humans and animals. The present study demonstrated how ultra weak lightcause changes in porcine epidemic diarrhea virus (PEDV) and Vero cells.\u0000\u0000Ultra weak lightactivates Vero cells by lowering pH of maintain media, but have proven no effect of killing the virus.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132059737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Missing Data on Covid-19 Forecasts","authors":"R. Isea","doi":"10.14302/issn.2692-1537.ijcv-21-3918","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3918","url":null,"abstract":"Mathematical and computational studies of Covid-19 have underestimated the influence that other countries have on their daily records. To visualize this, a Granger causality analysis was implemented in Python to determine if the cases registered in Brazil, Chile, Colombia, Ecuador, Panama, Paraguay, Peru and the USA have any effect on Venezuela, and between all of them. Finally, this paper highlights the need to incorporate causality analysis employing only the cases of Covid-19 to improve mid and long term forecasts.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132293188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SARS-Cov-2 Viral Kinetics in Mild COVID-19 Patients Treated with Chloroquine Regimens or Standard of Care","authors":"K. Siripassorn, A. Huang, Ravee Nitiyanontakij, S. Uttayamakul, C. Klungthong, Taweewun Hunsawong, Kamonthip Rungrojcharoenkit, Jindarat Lohachanakul, Chanikarn Kodchakorn, P. Vanachayangkul, Yongyuth Poolpanichupatum, Kittinun Hussem, Anthony R. Jones, S. Fernandez","doi":"10.14302/issn.2692-1537.ijcv-21-3924","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3924","url":null,"abstract":"This study measures the impact of chloroquine (CQ) therapy in reducing SARS-CoV-2 viral load in infected individuals and hence its transmissibility by describing changes in nasopharyngeal SARS-CoV-2 RNA kinetics in patients receiving standard of care (SOC) or CQ +/- ritonavir-boosted lopinavir (LPV/r). The nasopharyngeal (NP) samples were collected from mild COVID-19 patients admitted at Bamrasnaradura Infectious Diseases Institute between March and April of 2020. These patients either received SOC, or a high dose of CQ with loading dose, or high dose of CQ plus LPV/r. The samples were tested at AFRIMS using a quantitative RT-PCR assay. Levels of CQ in the plasma were measured 6 days post initiation of their treatment. In some instances, viral isolation was attempted to determine SARS-CoV-2 viability. Analyses of the clinical outcomes showed that CQ +/- lopinavir did not contribute significantly to decreasing the number of days with detected SARS-CoV-2 RNA. Viral NP GEs declined faster in the CQ group, but benefits diminished rapidly with delays in treatment initiation.\u0000\u0000Funding\u0000Global Emerging Infections Surveillance, Armed Forces Health Surveillance Branch (GEIS-AFHSB) for all research-related activities at the AFRIMS","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124942455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COVID-19 Pandemic: The Causative Agent is New, The Problem is Old","authors":"I. Klepikov","doi":"10.14302/issn.2692-1537.ijcv-21-3626","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3626","url":null,"abstract":"","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121040960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Dynamic Changes of White Blood Cell Count and Lymphocyte Count and Compare their Levels in the Early Stage of Covid-19","authors":"Ling Wang","doi":"10.14302/issn.2692-1537.ijcv-21-3862","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3862","url":null,"abstract":"COVID-19 is a new infectious disease, which needs to explore the clinical value of white blood cell count and lymphocyte to provide help for diagnosis and treatment.COVID-19 cases were Selected that admitted to 2 hospitals in Guizhou, China. WBC and LYM in the 1st day, in the 4th day and in the 7th day after onset were collected. There were not any differences in The WBC and LYM in the 4th day and the 7th day between the two groups.WBC and LYM in the 1st day in the moderate group were lesser than in the mild group. WBC and LYM were no dynamic changes in the mild group. In moderate group, WBC and LYM in the 1st day were lesser than in the 4th day. The levels in the 4th day and the 7th day were no differences. The conclusion was In the early stage of COVID-19, the WBC and LYM in moderate patients were significantly decreased within 4 days after onset, and could be restored to normal level after 4-7 days. However, no dynamic changes were observed in mild patients within 7 days.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115468971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analytical solutions of the transmissibility of the SARS-CoV-2 in three interactive populations","authors":"R. Isea","doi":"10.21203/RS.3.RS-314864/V1","DOIUrl":"https://doi.org/10.21203/RS.3.RS-314864/V1","url":null,"abstract":"\u0000 This paper resolves analytically a mathematical model that reproduces the transmission of Covid-19 in three interactive populations, i.e. from the initial source of contagion associated with the bat population, subsequently transmitted to unknown host (usually associate with pangolins). The host were sent and distributed to Seafood Market in Wuhan (defined reservoir), and finally infected to the human population. The model is based on a system of ten differential equations reproducing all the possible infection scenarios among all of them, that is: (1) there is no infection in any of the three populations, (2) only the population of bats is infected, (3) only the pangolins, (4) only the human people. Later, combinations between them, this is: (5) both the bat and pangolin populations, (6) bats and humans, (7) pangolins and humans, and finally, (8) all the previous populations. In each scenario, I deduced the critical points as well as the eigenvalues that indicate the equilibrium conditions. Finally, it is demonstrated the validity of the model with the data corresponding to the second wave of infections in Australia","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129331174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Current Chinese Global Supply Chain Monopoly and the Covid-19 Pandemic","authors":"George Rapciewicz, Donald L. Buresh","doi":"10.14302/issn.2692-1537.ijcv-21-3720","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-21-3720","url":null,"abstract":"Because of the ongoing Covid-19 crisis, supply chain management performance seems to be struggling. The purpose of this paper is to examine a variety of critical factors related to the application of contingency theory to determine its feasibility in preventing future supply chain bottlenecks. The study reviewed current online news reports, previous research on contingency theory, as well as strategic and structural contingency theories. This paper also systematically reviewed several global supply chain management and strategic decision-making studies in an effort to promote a new strategy. The findings indicated that the need for mass production of products within the United States, as well as within trading partners, is necessary to prevent additional Covid-19 related supply chain gaps. The paper noted that in many instances, the United States has become dependent on foreign products, where the prevention of future supply chain gaps requires the United States restore its manufacturing prowess.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121278869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Hydroxychloroquine on Clinical Improvement and Mortality Among Patients with COVID-19 Admitted to Four General Hospitals in Saudi Arabia","authors":"M. S. Al-Ghamdi, N. Aljuhani, A. Al-Somali, Saeed Alzahrani, Rashed Alotaibi, Salma Siddiqua, Marwah Naitah, Sayda albelewi, A. Al-Ghamdi, Fayez Alotaibi, Abdullmoin AlQarni, Khalid W. Al-Hariqi, Manal M. Al Gethamy","doi":"10.14302/ISSN.2692-1537.IJCV-20-3652","DOIUrl":"https://doi.org/10.14302/ISSN.2692-1537.IJCV-20-3652","url":null,"abstract":"Background\u0000The use of hydroxychloroquine in coronavirus disease (COVID-19) pandemic raised significant concerns as regards safety and efficacy in hospitalized patients. The objective was to examine the effect of hydroxychloroquine on clinical improvement and mortality among hospitalized patients with COVID-19.\u0000\u0000Methods\u0000A prospective cohort study was conducted at four general hospitals in the Western region, Saudi Arabia. Patients who had absolute or relative contraindication for using hydroxychloroquine were excluded. Patients concomitantly receiving other medications including azithromycin, antivirals, and supportive treatment were not excluded.\u0000\u0000Results\u0000A total 267 patients were included in the current analysis; 185 (69.3%) on hydroxychloroquine and 82 (30.7%) on non-hydroxychloroquine treatments. The average age was 46.0±13.3 years and 78.3% of the patients were males. Approximately 95.9% of the patients were symptomatic with mild (50.6%), moderate (32.6%), severe (8.2%), or ARDS symptoms (4.5%). Compared with no hydroxychloroquine, those on hydroxychloroquine had significantly longer length of stay (11.5±7.1 versus 7.8±4.3 days, p<0.001), more ICU admission (22.7% versus 9.8%, p=0.012), and more intubation (12.4% versus 3.7%, p=0.026). Improvement of symptoms (84.3% versus 81.7%, p=0.595) and hospitalization death (7.0% versus 1.2%, p=0.071) were not significantly different between groups. With exception of length of stay, the association of hydroxychloroquine with the above negative outcomes disappeared after adjustment for several factors including disease severity and concomitant use of azithromycin.\u0000\u0000Conclusions\u0000Hydroxychloroquine is not associated with better improvement of symptoms compared with other treatments. Moreover, it is associated with longer length of stay but not mortality or ICU admission in adjusted analysis.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"26 664 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122446132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COVID-19: Success Depends on Medical Concepts, Not Political Views","authors":"I. Klepikov","doi":"10.14302/issn.2692-1537.ijcv-20-3597","DOIUrl":"https://doi.org/10.14302/issn.2692-1537.ijcv-20-3597","url":null,"abstract":"The appearance of the current COVID-19 pandemic has not only significantly changed the usual rhythm and conditions of our life, but also came as a direct surprise to many, causing a sense of anxiety and insecurity. As the new situation developed and its consequences accumulated, long-standing problems that had previously gone unnoticed or unimportant for many were increasingly identified. And if a year ago the discussion of these issues was not perceived properly in the medical community, today the situation itself dictates the need for such an analysis. Moreover, the pandemic has come as a complete surprise to the vast majority of specialists, depriving them of their usual treatment regimens, and the current offers and efforts of medical care are symptomatic and do not affect the overall results.    \u0000 \u0000At this time, when the coronavirus pandemic is an indisputable fact, it is difficult to refute the claims that this catastrophe has been steadily approaching us for many years. The main problem of coronavirus infection is the development of a viral form of pneumonia with all possible consequences. Viruses have long appeared in the description of pathogens of acute pneumonia (AP), but in previous years their independent role in the development of this disease was more declarative, and viral infections were considered as harbingers of bacterial inflammation.","PeriodicalId":373064,"journal":{"name":"International Journal of Coronaviruses","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129976607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}