scholarly journals Insights into SARS-CoV-2, the Coronavirus Underlying COVID-19: Recent Genomic Data and the Development of Reverse Genetics Systems

2020 ◽  
Vol 101 (10) ◽  
pp. 1021-1024
Author(s):  
Severino Jefferson Ribeiro da Silva ◽  
Renata Pessôa Germano Mendes ◽  
Caroline Targino Alves da Silva ◽  
Alessio Lorusso ◽  
Alain Kohl ◽  
...  

The emergence and rapid worldwide spread of a novel pandemic of acute respiratory disease – eventually named coronavirus disease 2019 (COVID-19) by the World Health Organization (WHO) – across the human population has raised great concerns. It prompted a mobilization around the globe to study the underlying pathogen, a close relative of severe acute respiratory syndrome coronavirus (SARS-CoV) called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Numerous genome sequences of SARS-CoV-2 are now available and in-depth analyses are advancing. These will allow detailed characterization of sequence and protein functions, including comparative studies. Care should be taken when inferring function from sequence information alone, and reverse genetics systems can be used to unequivocally identify key features. For example, the molecular markers of virulence, host range and transmissibility of SARS-CoV-2 can be compared to those of related viruses in order to shed light on the biology of this emerging pathogen. Here, we summarize some recent insights from genomic studies and strategies for reverse genetics systems to generate recombinant viruses, which will be useful to investigate viral genome properties and evolution.

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 748-752
Author(s):  
Swapnali Khabade ◽  
Bharat Rathi ◽  
Renu Rathi

A novel, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causes severe acute respiratory syndrome and spread globally from Wuhan, China. In March 2020 the World Health Organization declared the SARS-Cov-2 virus as a COVID- 19, a global pandemic. This pandemic happened to be followed by some restrictions, and specially lockdown playing the leading role for the people to get disassociated with their personal and social schedules. And now the food is the most necessary thing to take care of. It seems the new challenge for the individual is self-isolation to maintain themselves on the health basis and fight against the pandemic situation by boosting their immunity. Food organised by proper diet may maintain the physical and mental health of the individual. Ayurveda aims to promote and preserve the health, strength and the longevity of the healthy person and to cure the disease by properly channelling with and without Ahara. In Ayurveda, diet (Ahara) is considered as one of the critical pillars of life, and Langhana plays an important role too. This article will review the relevance of dietetic approach described in Ayurveda with and without food (Asthavidhi visheshaytana & Lanhgan) during COVID-19 like a pandemic.


JAMIA Open ◽  
2020 ◽  
Author(s):  
Srikar Chamala ◽  
Sherri Flax ◽  
Petr Starostik ◽  
Kartikeya Cherabuddi ◽  
Nicole M Iovine ◽  
...  

Abstract Coronavirus disease 2019, first reported in China in late 2019, has quickly spread across the world. The outbreak was declared a pandemic by the World Health Organization on March 11, 2020. Here, we describe our initial efforts at the University of Florida Health for processing of large numbers of tests, streamlining data collection, and reporting data for optimizing testing capabilities and superior clinical management. Specifically, we discuss clinical and pathology informatics workflows and informatics instruments which we designed to meet the unique challenges of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing. We hope these results benefit institutions preparing to implement SARS-CoV-2 testing.


Pathogens ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 32
Author(s):  
Giovanni Di Guardo

With over 80 million cases, and 1,800,000 deaths reported at the end of 2020 by the World Health Organization, the “CoronaVirus Disease-2019” (CoViD-19) pandemic, caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), should be viewed as a global catastrophe [...]


2021 ◽  
Vol 8 (2) ◽  
pp. 01-03
Author(s):  
Ashish Gujrathi

Coronavirus (COVID-19) was recognized in late December in Hubei province of Wuhan city in China. This highly contagious disease, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is transmitted from humans to humans. After the first case in Wuhan, the disease rapidly spread to other parts of the globe. On March 11, 2020, the World Health Organization (WHO) made an assessment that COVID-19 can be characterized as a pandemic. Thus, social-distancing became an important measure to stop the spread of this disease. Various countries across the world adopted nationwide lockdowns. This led to a completely new scenario for the world, where every business in each industry faced new challenges and witnessed new opportunities. Similarly, the medical personal protective industry, a vital part of the healthcare sector, also witnessed new growth opportunities.


2021 ◽  
pp. 19-23
Author(s):  
Donizete Tavares Da Silva ◽  
Priscila De Sousa Barros Lima ◽  
Renato Sampaio Mello Neto ◽  
Gustavo Magalhães Valente ◽  
Débora Dias Cabral ◽  
...  

In March 2020, the World Health Organization (1) declared COVID-19 as a pandemic and a threat to global public health (2). The virus mainly affects the lungs and can cause acute respiratory distress syndrome (ARDS). In addition, coronavirus 2 severe acute respiratory syndrome (SARSCOV2) also has devastating effects on other important organs, including the circulatory system, brain, gastrointestinal tract, kidneys and liver


Vaccines ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 74 ◽  
Author(s):  
Larisa Rudenko ◽  
Irina Kiseleva ◽  
Elena Krutikova ◽  
Ekaterina Stepanova ◽  
Irina Isakova-Sivak ◽  
...  

Influenza H7N9 virus is a potentially pandemic subtype to which most people are immunologically naïve. To be better prepared for the potential occurrence of an H7N9 pandemic, in 2017 the World Health Organization recommended developing candidate vaccine viruses from two new H7N9 viruses, A/Guangdong/17SF003/2016 (A/GD) and A/Hong Kong/125/2017 (A/HK). This report describes the development of live attenuated influenza vaccine (LAIV) candidates against A/GD and A/HK viruses and study of their safety and immunogenicity in the ferret model in order to choose the most promising one for a phase I clinical trial. The A/HK-based vaccine candidate (A/17/HK) was developed by classical reassortment in eggs. The A/GD-based vaccine candidate (A/17/GD) was generated by reverse genetics. Ferrets were vaccinated with two doses of LAIV or phosphate-buffered saline. Both H7N9 LAIVs tested were safe for ferrets, as shown by absence of clinical signs, and by virological and histological data; they were immunogenic after a single vaccination. These results provide a compelling argument for further testing of these vaccines in volunteers. Since the A/HK virus represents the cluster that has caused the majority of human cases, and because the A/HK-based LAIV candidate was developed by classical reassortment, this is the preferred candidate for a phase I clinical trial.


2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Salman Tahir Shafi

In January 2020, the pathogen was identified and named by the World Health Organization as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2). The consequent SARS-CoV-2-related disease was defined as coronavirus disease 2019 (COVID-19). As data emerged about characteristics of the disease, it was found to be associated with increased risk of acute kidney injury (AKI). We explore the recent literature and reports emerging from the epicenters of the pandemic to help our viewers understand the nature of AKI among these patients. 


2021 ◽  
Vol 10 (1) ◽  
pp. 36-41
Author(s):  
Seyed Hesamaddin Banihashemi ◽  
Ahmadreza Karimi ◽  
Hasti Nikourazm ◽  
Behnaz Bahmanyar ◽  
Dariush Hooshyar

The severe acute respiratory syndrome coronavirus 2 virus and its associated disease, called coronavirus disease 2019 (COVID-19), first appeared in Wuhan, China in December 2019 and quickly spread around the world. Coronavirus was officially named COVID-19 by the World Health Organization and was recognized as a pandemic due to its rapid spread worldwide. Based on the published data, it is hoped to provide a source for later studies and to help prevent and control the contagious COVID-19 and its characteristics, and considerations that surgeons and medical staff must observe during the epidemic.


2020 ◽  
Vol 25 (32) ◽  
Author(s):  
Erik Alm ◽  
Eeva K Broberg ◽  
Thomas Connor ◽  
Emma B Hodcroft ◽  
Andrey B Komissarov ◽  
...  

We show the distribution of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) genetic clades over time and between countries and outline potential genomic surveillance objectives. We applied three genomic nomenclature systems to all sequence data from the World Health Organization European Region available until 10 July 2020. We highlight the importance of real-time sequencing and data dissemination in a pandemic situation, compare the nomenclatures and lay a foundation for future European genomic surveillance of SARS-CoV-2.


2020 ◽  
Vol 11 (7) ◽  
Author(s):  
Xing Li ◽  
Ying Wang ◽  
Patrizia Agostinis ◽  
Arnold Rabson ◽  
Gerry Melino ◽  
...  

Abstract The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in December 2019. As similar cases rapidly emerged around the world1–3, the World Health Organization (WHO) declared a public health emergency of international concern on January 30, 2020 and pronounced the rapidly spreading coronavirus outbreak as a pandemic on March 11, 20204. The virus has reached almost all countries of the globe. As of June 3, 2020, the accumulated confirmed cases reached 6,479,405 with more than 383,013 deaths worldwide. The urgent and emergency care of COVID-19 patients calls for effective drugs, in addition to the beneficial effects of remdesivir5, to control the disease and halt the pandemic.


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