Review of the SARS-CoV-2 (COVID-19) Based on Current Evidence

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Takele S ◽  
◽  
Kedir M ◽  
Keyword(s):  
Close Contact ◽  
Genomic Structure ◽  
Antiviral Agents ◽  
World Health ◽  
Current Evidence ◽  
Respiratory Illnesses ◽  
Published Evidence ◽  
The Moment ◽  
Novel Coronavirus ◽  
Health Organization

The coronaviruses are a group of RNA-containing agents known to cause respiratory illnesses in humans and animals. This virus has caused two largescale pandemics in humans in the past two decades, SARS and Middle East Respiratory Syndrome (MERS). A novel coronavirus (SARS-CoV-2) that causes the disease Coronavirus Disease 2019 (COVID-19) has been isolated from in a seafood and poultry market in the Chinese city of Wuhan in 2019. Cases have been detected in most countries worldwide, and on March 11, 2020, the World Health Organization characterized the outbreak as a pandemic. The virus spreads from person-to-person via close contact, respiratory droplets, or surface contact. The disease is mild in most people, yet may progress to pneumonia, acute respiratory distress syndrome, multi-organ dysfunction, and even death. Treatment is essentially supportive as the role of antiviral agents is yet to be established. At the moment, is known relatively little about COVID-19, except that it is a highly pathogenic and possibly zoonotic agent. Therefore, the objective of this review paper is to summarize the current published evidence on the genomic structure, pathogenesis, epidemiology, clinical characteristics, diagnosis, and prevention of SARS-CoV-2 (COVID-19).

Aftermath of Covid -19 Pandemic in the community

2021 ◽  
pp. 498-500
Author(s):  
Sholly. CK
Keyword(s):  
World Health Organization ◽  
Antiviral Treatment ◽  
World Health ◽  
Health Concern ◽  
Severe Illness ◽  
Respiratory Illnesses ◽  
The World ◽  
Novel Coronavirus ◽  
Health Organization ◽  
Respiratory Droplets

Novel corona virus (COVID-19) is an infectious condition, which can be spread directly or indirectly from one person to another and causes respiratory illnesses, range from common cold to acute respiratory syndrome. The first cases of this virus were found in Wuhan, China. According to the World Health Organization, COVID-19 is serious health concern and has higher risk for severe illness and spreading rapidly all over the world.This novel coronavirus was named Coronavirus Disease 2019 (COVID-19) by WHO in February 2020. The World Health Organization (WHO) has declared the coronavirus disease 2019 a pandemic, in the year2020 March. A global coordinated effort is needed to stop the further spread of the virus. Among all cases about 92% of the confirmed cases were recorded from China. Initial reports suggest that death rate ranges from 1% to 2% which varies in the study and country. The most of the death have occurred in patients over 50 years of age followed by young children. For the confirmed cases which included both laboratory and clinically diagnosed till now there is no specific antiviral treatment recommended but there is vaccine currently available. Once the virus develops in people, corona viruses can be spread from person to person through respiratory droplets. The viral material hangs out in these droplets and can be breathed into the respiratory tract, where the virus can then lead to an infection. Repercussions of Covid -19 on individuals, families and on front line warriors are countless1.

scholarly journals Epidemiological Models of SARS-CoV-2 (COVID-19) to Control the Transmission Based on Current Evidence: A Systematic Review

2020 ◽  
Author(s):  
Swati Arora ◽  
Rishabh Jain ◽  
Harendra Pal Singh
Keyword(s):  
Real Data ◽  
World Health ◽  
Current Evidence ◽  
Epidemiological Models ◽  
Medical Supplies ◽  
The World ◽  
The Usa ◽  
Novel Coronavirus ◽  
Health Organization ◽  
The Uk

In Wuhan city of China, an episode of novel coronavirus (COVID-19) happened. during late December and it has quickly spread to all places in the world. Until May 29, 2020, cases were high in the USA with 1.7 Million, Russia with approximately 387 thousand, the UK with 271 thousand confirmed cases. Everybody on the planet is anxious to know when the coronavirus pandemic will end. In this scourge, most nations force extreme medication measures to contain the spread of COVID-19. Modeling has been utilized broadly by every national government and the World Health Organization in choosing the best procedures to seek after in relieving the impacts of COVID-19. Many epidemiological models are studied to understand the spread of the illness and its prediction to find maximum capacity for human-to-human transmission so that control techniques can be adopted. Also, arrangements for the medical facilities required such as hospital beds and medical supplies can be made in advance. Many models are used to anticipate the results keeping in view the present scenario. There is an urgent need to study the various models and their impacts. In this study, we present a systematic literature review on epidemiological models for the outbreak of novel coronavirus in India. The epidemiological dynamics of COVID-19 is also studied. Here, In addition, an attempt to take out the results from the exploration and comparing it with the real data. The study helps to choose the models that are progressive and dependable to predict and give legitimate methods for various strategies.

scholarly journals Sex hormones as an emerging weapon to combat COVID-19

2021 ◽  
Vol 5 (2) ◽  
pp. 01-03
Author(s):  
Dattatreya Mukherjee
Keyword(s):  
Close Contact ◽  
Virus Detection ◽  
World Health ◽  
Rapid Screening ◽  
Global Level ◽  
Rna Detection ◽  
Highly Pathogenic ◽  
Novel Coronavirus ◽  
Health Organization ◽  
Respiratory Droplets

Coronavirus disease 2019 (COVID-19) started as an epidemic in Wuhan in 2019 and was declared pandemic by WHO in March 2020. The virus has been identified and named as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This novel coronavirus strain is the causative agent of COVID-19, and continues to rapidly spread worldwide. SARS-CoV-2 is a highly pathogenic and transmissible coronavirus that spreads through respiratory droplets and unprotected close contact. “COVID‑19 outbreak, which has caused >95 million confirmed infections and >2 million coronavirus related deaths, is one of the most disastrous worldwide crises in recent years. Several methods have been used to examine SARS-CoV-2 infections.” i.e. RT-qPCR for viral RNA detection, and rapid screening procedures for antibody or virus detection. COVID-19 shows an incubation period of 3–7 days globally. Approximately 80% of the cases remain mild or asymptomatic, 15% are severe and 5% infectious cases turn to critical, requiring ventilation [2]. Several clinical trials have been proposed for its treatment and management with supportive aim of mortality reduction [1]. By glancing a view on fig 1, it can be evidently seen that COVID-19 cases have started to rise significantly since last few months. Furthermore, as per World Health Organization (WHO), there have been 131,020,967 confirmed cases of COVID-19 at a global level recently.

scholarly journals SARS – COV-2 (COVID-19) Pandemic: A Critical Review on Novel Coronavirus Pathogenesis, Clinical Diagnosis and Treatment

2020 ◽  
Vol 10 (3) ◽  
pp. 241-252
Author(s):  
Ruchi Jain ◽  
Nilesh Jain ◽  
Surendra Kumar Jain ◽  
Ram C Dhakar
Keyword(s):  
World Health ◽  
The Novel ◽  
Global Public Health ◽  
Future Studies ◽  
The Public ◽  
The Third ◽  
Treatment And Prevention ◽  
Published Evidence ◽  
Novel Coronavirus ◽  
Health Organization

The 2019-nCoV is officially called SARS-CoV-2 and the disease is named COVID-19. The Novel coronavirus (SARS-CoV-2) caused pneumonia in Wuhan, China in December 2019 is a highly contagious disease. The World Health Organization (WHO) has declared it as a global public health emergency. This is the third serious Coronavirus outbreak in less than 20 years, following SARS in 2002–2003 and MERS in 2012. Currently, the research on novel coronavirus is still in the primary stage. It is currently believed that this deadly Coronavirus strain originated from wild animals at the Huanan market in Wuhan by Bats, snakes and pangolins have been cited as potential carriers. On the basis of current published evidence, we systematically summarize the epidemiology, clinical characteristics, diagnosis, treatment and prevention of COVID-19. This review in the hope of helping the public effectively recognize and deal with the novel coronavirus (SARS-CoV-2) and providing a reference for future studies. Keywords: SARS-CoV-2, COVID-19, Coronavirus, pneumonia, Respiratory infection

scholarly journals Overview of coronavirus - Understanding origin, pathogenesis, clinical features & diagnostic approach to COVID-19 in Indian scenario

2020 ◽  
Vol 8 (S1) ◽  
pp. 41-52
Author(s):  
Bilolikar AK ◽  
Reddy SG ◽  
Banerjee J ◽  
Fatima R ◽  
Poonam AR
Keyword(s):  
Clinical Features ◽  
Close Contact ◽  
Risk Groups ◽  
Laboratory Diagnosis ◽  
World Health ◽  
Enzyme Linked Immunosorbent Assay ◽  
Alveolar Type ◽  
Protein Receptor ◽  
Novel Coronavirus ◽  
Health Organization

In early December 2019, an outbreak of novel coronavirus (2019-nCoV) or the severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) as it is now called, occurred in Wuhan City, Hubei Province, China. On January 30, 2020 the World Health Organization declared the outbreak as a Public Health Emergency of International Concern. Vaccines to prevent human coronavirus infections are not yet available. Coronavirus disease 2019 (COVID-19) spreads primarily when people are in close contact with small droplets produced by an infected person, identified as “super spreaders”. COVID-19 can be fatal among high-risk groups patients >60 yr. The envelope spike “S” protein receptor binding domain of SARS-CoV-2 use host receptor angiotensin-converting enzyme 2 (ACE2) to enter the cells of airway epithelium and alveolar type 2 (AT2) pneumocytes, and pulmonary cells. The most common clinical features are fever (80-90%), cough (60-80%) and breathlessness (18-46%). The other symptoms include myalgia, sore throat, loss of taste and smell, headache, nausea, vomiting and diarrhoea. Infection control practices to be followed stringently by Health Care Workers (HCW). Standard precautions to be maintained. Specimen to be packed in triple container packing. Cold temperature to be maintained during transport and storage. Laboratory tests of COVID-19 are broadly categorized into two methods: (1) Nucleic acid based assay: RT-PCR, TrueNAT, CBNAAT & (2) Immunoassay: Can be broadly divided into 2 types: Antigen based assay: Rapid antigen test, Antibody based assay: enzyme-linked immunosorbent assay (ELISA). Keywords: coronavirus; COVID-19; laboratory diagnosis; SARS-CoV-2

scholarly journals Techniques of Gastrointestinal Endoscopy—Do We Need to Change Anything?

2020 ◽  
Vol 11 (01) ◽  
pp. 55-58
Author(s):  
Prakash Zacharias ◽  
Hasim Ahamed
Keyword(s):  
Gastrointestinal Endoscopy ◽  
Close Contact ◽  
World Health ◽  
Virus Particles ◽  
Asymptomatic Patients ◽  
Care Workers ◽  
Increased Risk ◽  
Stool Samples ◽  
Novel Coronavirus ◽  
Health Organization

AbstractNovel coronavirus disease 2019 (COVID-19) has spread to different parts of the world and was declared a pandemic by World Health Organization (WHO). Health care workers are at increased risk of contracting the disease due to their nature of work and close contact with the patients. Staff in endoscopy need to be aware of this risk due to the aerosol-generating nature of procedures and the presence of virus particles in stool samples of infected persons. The risk of asymptomatic patients spreading the disease is also a cause for concern. This article intends to provide guidance and recommendations for techniques and practice of gastrointestinal (GI) endoscopy to prevent infection in endoscopy unit.

scholarly journals Infection prevention measures for orthopaedic departments during the COVID-2019 pandemic: a review of current evidence

2020 ◽  
Vol 1 (4) ◽  
pp. 74-79 ◽  
Author(s):  
Thomas E. Baldock ◽  
Scott M. Bolam ◽  
Ryan Gao ◽  
Mark F. Zhu ◽  
Michael P. J. Rosenfeldt ◽  
...  
Keyword(s):  
Bacterial Infections ◽  
Close Contact ◽  
World Health ◽  
Current Evidence ◽  
Cochrane Library ◽  
Personal Protection ◽  
Prevention Measures ◽  
Personal Protection Equipment ◽  
Orthopaedic Surgeons ◽  
Health Organization

Aim The coronavirus disease 2019 (COVID-19) pandemic presents significant challenges to healthcare systems globally. Orthopaedic surgeons are at risk of contracting COVID-19 due to their close contact with patients in both outpatient and theatre environments. The aim of this review was to perform a literature review, including articles of other coronaviruses, to formulate guidelines for orthopaedic healthcare staff. Methods A search of Medline, EMBASE, the Cochrane Library, World Health Organization (WHO), and Centers for Disease Control and Prevention (CDC) databases was performed encompassing a variety of terms including ‘coronavirus’, ‘covid-19’, ‘orthopaedic’, ‘personal protective environment’ and ‘PPE’. Online database searches identified 354 articles. Articles were included if they studied any of the other coronaviruses or if the basic science could potentially applied to COVID-19 (i.e. use of an inactivated virus with a similar diameter to COVID-19). Two reviewers independently identified and screened articles based on the titles and abstracts. 274 were subsequently excluded, with 80 full-text articles retrieved and assessed for eligibility. Of these, 66 were excluded as they compared personal protection equipment to no personal protection equipment or referred to prevention measures in the context of bacterial infections. Results There is a paucity of high quality evidence surrounding COVID-19. This review collates evidence from previous coronavirus outbreaks to put forward recommendations for orthopaedic surgeons during the COVID-19 pandemic. The key findings have been summarized and interpreted for application to the orthopaedic operative setting. Conclusion For COVID-19 positive patients, minimum suggested PPE includes N95 respirator, goggles, face shield, gown, double gloves, and surgical balaclava. Space suits not advised. Be trained in the correct technique of donning and doffing PPE. Use negative pressure theatres if available. Minimize aerosolization and its effects (smoke evacuation and no pulse lavage). Minimize further unnecessary patient-staff contact (dissolvable sutures, clear dressings, split casts).

scholarly journals Outbreak of strains of SARS CoV-2, its prevalence & preventive measures taken by different Countries

2020 ◽  
Author(s):  
Manoj Kumar Yadav ◽  
Arpana Vibhuti ◽  
Anjali Priyadarshini ◽  
Archana Gupta ◽  
V. Samuel Raj ◽  
...  
Keyword(s):  
Preventive Measures ◽  
Close Contact ◽  
World Health ◽  
Health It ◽  
Preventative Intervention ◽  
Rapid Spread ◽  
Social Gathering ◽  
Underlying Mechanisms ◽  
Novel Coronavirus ◽  
Health Organization

World Health Organization (WHO) announced the official name of the 2019 novel coronavirus associated diseases coronavirus disease (COVID-19) and the reference name for the virus is severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).Transmission of SARS CoV-2 in humans occurs mainly via respiratory droplet or aerosols, close contact with an infected person, exposed to coughing, sneezing and likely in oral-faecal. The COVID-19 outbreak started in different countries at different times, and now those countries are at different stages. By comparing infection trajectories from the 100th case mark, we have been able to observe the rapid spread of the virus in various countries. To date, no specific antiviral drugs or vaccines are available for the control of SARS CoV-2. The experts at global level suggest implementation of strict measures such as practicing quarantine, social distancing, avoiding social gathering to reduce the number of COVID-19 cases. This is a dynamically unfolding pandemic that will require the concerted efforts of counties around the world to control. Given the unfold of the new coronavirus and its impacts on human health, it becomes pertinent to device methods for handling this public health emergency at the community, national, and international levels. it's vital to additional investigate a preventative intervention to halt the unfold of the COVID-19 infection, because it has been discovered that not all countries have constant fate concerning infection and fatality. It becomes vital to acknowledge and study the factors accountable and also the underlying mechanisms for this.

scholarly journals An Explication of Pandemic Public Health Emergency, Coronavirus Disease 2019 (COVID-19)

2020 ◽  
Author(s):  
Neha Pant ◽  
A. K. Upadhyay
Keyword(s):  
Close Contact ◽  
Clinical Signs ◽  
Underlying Disease ◽  
World Health ◽  
Natural Immunity ◽  
Indirect Contact ◽  
Ssrna Virus ◽  
Control And Prevention ◽  
Novel Coronavirus ◽  
Health Organization

In December 2019 a series of acute atypical respiratory disease occurred in Wuhan, China. The first clusters of cases were identified in association with the South China Seafood Market. In subsequent investigations it was found to be a novel coronavirus. It is suggested to have zoonotic origin. On December 31st 2019, China notified the outbreak to the World Health Organization. During the New Year, the massive migration of Chinese fuelled the epidemic. Cases in other provinces of China and other countries (South Korea, Thailand and Japan in quick succession) were reported in people who were returning from Wuhan. On 11 February, on the basis of existing rules on taxonomy the virus was names as SARS-CoV-2. SARS-CoV-2 belongs to the family of coronaviruses. It is a positive-sense single-stranded RNA (+ssRNA) virus. It has a single linear RNA segment. On the same day WHO announced the new name for the disease i.e. Coronavirus disease 2019 (COVID-19). The WHO and the US Centers for Disease Control and Prevention (CDC) say it is primarily spread directly due to close contact between people through small droplets produced during coughing, sneezing or talking within a range of about 1-3 meters. It may even transmit through indirect contact via fomites. While there are concerns it may spread by feces, this risk is believed to be low. Soon, the number of cases started increasing exponentially and on March 12, 2020 WHO announced COVID-19 a pandemic. COVID-19 has been impacting a large number of people worldwide, being reported in approximately 200 countries and territories. It was identified that Angiotensin converting enzyme 2 (ACE2) act as a functional receptor for SARS-CoV-2. The pathophysiology of COVID-19 follows sex differences, age differences, race differences in as well as underlying disease conditions i.e. comorbidities aggravated the severity of this disease.  The most common symptoms being reported are fever, dry cough or chest tightness, and dyspnoea. It is now widely recognized that respiratory symptoms of COVID-19 are extremely heterogeneous, ranging from minimal symptoms to significant hypoxia with ARDS. Diagnosis is done with the help of history, clinical signs and serological testing. Real-time reverse transcription polymerase chain reaction (rRT-PCR) is considered the standard method of testing. Several have been tested in clinical trials but none of them have been proven to be a definite therapy yet. The evolution of the current outbreak has seen extraordinary measures put in place to control transmission, including the ‘shut-down’ and ‘quarantine’. Researchers are trying to develop a vaccine against SARS-CoV-2 but at present, no vaccine is available. One should strictly follow all the preventive measures as directed by WHO and CDC and along with this, one should boost up its natural immunity to lessen the chances of getting infection.

scholarly journals Infection prevention measures for orthopaedic departments during the COVID-2019 pandemic: a review of current evidence

2020 ◽  
Vol 1 (4) ◽  
pp. 74-79 ◽  
Author(s):  
Thomas E. Baldock ◽  
Scott M. Bolam ◽  
Ryan Gao ◽  
Mark F. Zhu ◽  
Michael P. J. Rosenfeldt ◽  
...  
Keyword(s):  
Bacterial Infections ◽  
Close Contact ◽  
World Health ◽  
Current Evidence ◽  
Cochrane Library ◽  
Personal Protection ◽  
Prevention Measures ◽  
Personal Protection Equipment ◽  
Orthopaedic Surgeons ◽  
Health Organization

Aim The coronavirus disease 2019 (COVID-19) pandemic presents significant challenges to healthcare systems globally. Orthopaedic surgeons are at risk of contracting COVID-19 due to their close contact with patients in both outpatient and theatre environments. The aim of this review was to perform a literature review, including articles of other coronaviruses, to formulate guidelines for orthopaedic healthcare staff. Methods A search of Medline, EMBASE, the Cochrane Library, World Health Organization (WHO), and Centers for Disease Control and Prevention (CDC) databases was performed encompassing a variety of terms including ‘coronavirus’, ‘covid-19’, ‘orthopaedic’, ‘personal protective environment’ and ‘PPE’. Online database searches identified 354 articles. Articles were included if they studied any of the other coronaviruses or if the basic science could potentially applied to COVID-19 (i.e. use of an inactivated virus with a similar diameter to COVID-19). Two reviewers independently identified and screened articles based on the titles and abstracts. 274 were subsequently excluded, with 80 full-text articles retrieved and assessed for eligibility. Of these, 66 were excluded as they compared personal protection equipment to no personal protection equipment or referred to prevention measures in the context of bacterial infections. Results There is a paucity of high quality evidence surrounding COVID-19. This review collates evidence from previous coronavirus outbreaks to put forward recommendations for orthopaedic surgeons during the COVID-19 pandemic. The key findings have been summarized and interpreted for application to the orthopaedic operative setting. Conclusion For COVID-19 positive patients, minimum suggested PPE includes N95 respirator, goggles, face shield, gown, double gloves, and surgical balaclava. Space suits not advised. Be trained in the correct technique of donning and doffing PPE. Use negative pressure theatres if available. Minimize aerosolization and its effects (smoke evacuation and no pulse lavage). Minimize further unnecessary patient-staff contact (dissolvable sutures, clear dressings, split casts).

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