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B.1.617.2
The Delta variant (B.1.617.2) was a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India in late 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The World Health Organization (WHO) indicated in June 2021 that the Delta variant was becoming the dominant strain globally. It has mutations in the gene encoding the SARS-CoV-2 spike protein causing the substitutions T478K, P681R and L452R, which are known to affect transmissibility of the virus as well as whether it can be neutralised by antibodies for previously circulating variants of the COVID-19 virus. In August 2021, Public Health England (PHE) reported secondary attack rate in household contacts of non-travel or unknown cases for Delta to be 10.8% ''vis-à-vis'' 10.2% for the Alpha variant; the case fatality rate for those 386,835 people with Delta is 0.3%, where 46% of the cases and 6% of the deaths are unvaccinated and below ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variants Of SARS-CoV-2
There are many variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19). Some are believed, or have been stated, to be of particular importance due to their potential for increased transmissibility, increased virulence, or reduced effectiveness of vaccines against them. These variants contribute to the continuation of the COVID-19 pandemic. only the Omicron variant is designated as a circulating variant of concern by the World Health Organization. Overview The emergence of SARS-CoV-2 may have resulted from recombination events between a bat SARS-like coronavirus and a pangolin coronavirus through cross-species transmission. The earliest available SARS-CoV-2 viral genomes were collected from patients in December 2019, and Chinese researchers compared these early genomes with bat and pangolin coronavirus strains to estimate the ancestral human coronavirus type; the identified ancestral genome ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) is a strain of coronavirus that causes COVID-19 (coronavirus disease 2019), the respiratory illness responsible for the ongoing COVID-19 pandemic. The virus previously had a Novel coronavirus, provisional name, 2019 novel coronavirus (2019-nCoV), and has also been called the human coronavirus 2019 (HCoV-19 or hCoV-19). First identified in the city of Wuhan, Hubei, China, the World Health Organization declared the outbreak a public health emergency of international concern on January 30, 2020, and a pandemic on March 11, 2020. SARS‑CoV‑2 is a positive-sense single-stranded RNA virus that is Contagious disease, contagious in humans. SARS‑CoV‑2 is a virus of the species ''severe acute respiratory syndrome–related coronavirus'' (SARSr-CoV), related to the Severe acute respiratory syndrome coronavirus 1, SARS-CoV-1 virus that caused the 2002–2004 SARS outbreak. Despite its close relation to SARS-CoV-1, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Vaccine
A COVID19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 (COVID19). Prior to the COVID19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). This knowledge accelerated the development of various vaccine platforms during early 2020. The initial focus of SARS-CoV-2 vaccines was on preventing symptomatic, often severe illness. In January 2020, the SARS-CoV-2 genetic sequence data was shared through GISAID, and by March 2020, the global pharmaceutical industry announced a major commitment to address COVID19. In 2020, the first COVID19 vaccines were developed and made available to the public through emergency authorizations and conditional approvals. Initially, most COVID19 vaccines were t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by a virus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China, in December 2019. The disease quickly spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 are variable but often include fever, cough, headache, fatigue, breathing difficulties, loss of smell, and loss of taste. Symptoms may begin one to fourteen days after exposure to the virus. At least a third of people who are infected do not develop noticeable symptoms. Of those who develop symptoms noticeable enough to be classified as patients, most (81%) develop mild to moderate symptoms (up to mild pneumonia), while 14% develop severe symptoms ( dyspnea, hypoxia, or more than 50% lung involvement on imaging), and 5% develop critical symptoms ( respiratory failure, shock, or multiorgan dysfunction). Older people are at a higher risk of developing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In Africa
The COVID-19 pandemicpandemic was confirmed to have spread to Africa on 14 February 2020, with the first confirmed case announced in Egypt. The first confirmed case in sub-Saharan Africa was announced in Nigeria at the end of February 2020. Within three months, the virus had spread throughout the continent, as Lesotho, the last African sovereign state to have remained free of the virus, reported a case on 13 May 2020. By 26 May, it appeared that most African countries were experiencing community transmission, although testing capacity was limited. Most of the identified imported cases arrived from Europe and the United States rather than from China where the virus originated. In early June 2021, Africa faced a third wave of COVID infections with cases rising in 14 countries. By 4 July the continent recorded more than 251,000 new Covid cases, a 20% increase from the prior week and a 12% increase from the January peak. More than sixteen African countries, including Malawi and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In India
The COVID-19 pandemic in India is a part of the worldwide pandemic of coronavirus disease 2019 () caused by severe acute respiratory syndrome coronavirus 2 (). As of , according to Indian government figures, India has the second-highest number of confirmed cases in the world (after the United States of America) with reported cases of COVID-19 infection and the third-highest number of COVID-19 deaths (after the United States and Brazil) at deaths. In May 2022, the World Health Organization estimated 4.7 million excess deaths, both directly and indirectly related to COVID-19 to have taken place in India. The first cases of COVID-19 in India were reported on 30 January 2020 in three towns of Kerala, among three Indian medical students who had returned from Wuhan, the epicenter of the pandemic. Lockdowns were announced in Kerala on 23 March, and in the rest of the country on 25 March. Infection rates started to drop in September. Daily cases peaked mid-September with over 90 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In Fiji
The COVID-19 pandemic in Fiji is part of the ongoing worldwide pandemic of coronavirus disease 2019 () caused by severe acute respiratory syndrome coronavirus 2 (). The first case of the disease in Fiji was reported on 19 March 2020 in Lautoka. , the country has had a total of 55,009 cases as of which 2,417 are currently active and 702 deaths, with cases reported on all divisions of the country. Apart from the COVID-19 deaths, 621 COVID-19 positive patients have died from pre-existing non-COVID-19 related illnesses. In March 2021, Fiji became the first Pacific island country to receive COVID-19 vaccines through the COVAX initiative with frontline workers and first responders the first to be vaccinated. As of 2 January 2022, more than 600,000 (98%) Fijians have received their first jab of the vaccine and almost 560,000 (92%) Fijians have received their second jab and are fully vaccinated. To date, only the AstraZeneca vaccine, Moderna vaccine and the Pfizer BioNTech vaccine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In The United Kingdom
The COVID-19 pandemic in the United Kingdom is a part of the worldwide pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In the United Kingdom, it has resulted in confirmed cases, and is associated with deaths. The virus began circulating in the country in early 2020, arriving primarily from travel elsewhere in Europe. Various sectors responded, with more widespread public health measures incrementally introduced from March 2020. The first wave was at the time one of the world's largest outbreaks. By mid-April the peak had been passed and restrictions were gradually eased. A second wave, with a new variant that originated in the UK becoming dominant, began in the autumn and peaked in mid-January 2021, and was deadlier than the first. The UK started a COVID-19 vaccination programme in early December 2020. Generalised restrictions were gradually lifted and were mostly ended by August 2021. A third wave, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In South Africa
The COVID-19 pandemic in South Africa is part of the ongoing pandemic of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). On 5 March 2020, Minister of Health Zweli Mkhize had confirmed the spread of the virus to South Africa, with the first known patient being a male citizen who tested positive upon his return from Italy. On 15 March 2020, the President of South Africa, Cyril Ramaphosa, declared a national state of disaster, and announced measures such as immediate travel restrictions and the closure of schools from 18 March. On 17 March, the ''National Coronavirus Command Council'' was established, "to lead the nation's plan to contain the spread and mitigate the negative impact of the coronavirus". On 23 March, a national lockdown was announced, starting on 27 March 2020. The first local death from the disease was reported on 27 March 2020. On 21 April, a 500 billion rand stimulus was announced in response ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In Europe
The global COVID-19 pandemic arrived in Europe with its first confirmed case in Bordeaux, France, on 24 January 2020, and subsequently spread widely across the continent. By 17 March 2020, every country in Europe had confirmed a case, and all have reported at least one death, with the exception of Vatican City. Italy was the first European country to experience a major outbreak in early 2020, becoming the first country worldwide to introduce a national lockdown. By 13 March 2020, the World Health Organization (WHO) declared Europe the epicentre of the pandemic and it remained so until the WHO announced it was overtaken by South America on 22 May. By 18 March 2020, lockdowns introduced in Europe affected more than 250 million people. Despite deployment of COVID-19 vaccines, Europe became the pandemic's epicentre once again in late 2021. On 11 January 2022, Dr. Hans Kluge, the WHO Regional Director for Europe said, "more than 50 percent of the population in the region wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In Asia
The COVID-19 pandemic began in Asia in Wuhan, Hubei, China, and has spread widely through the continent. As of , at least one case of COVID-19 had been reported in every country in Asia except Turkmenistan. The Asian countries with the highest numbers of confirmed coronavirus cases are India, South Korea, Turkey, Vietnam, and Iran. Despite being the first area of the world hit by the outbreak, the early wide-scale response of some Asian states, particularly Bhutan, Singapore, Taiwan, and Vietnam has allowed them to fare comparatively well. China was criticised for initially minimising the severity of the outbreak, but its wide-scale response has largely contained the disease since March 2020. As of July 2021, the highest numbers of deaths are recorded in India, Indonesia, Iran, and Turkey, each with more than 90,000 deaths and more than 900,000 deaths combined. However, the death toll in Iran and Indonesia are claimed to be much higher than the official figures. Per capita, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Advisory Group For Emergencies
The Scientific Advisory Group for Emergencies (SAGE) is a British Government body that advises central government in emergencies. It is usually chaired by the United Kingdom's Chief Scientific Adviser, currently Sir Patrick Vallance. Specialists from academia and industry, along with experts from within government, make up the participation, which will vary depending on the emergency. SAGE gained public prominence for its role in the 2020 COVID-19 pandemic in the United Kingdom. History In the aftermath of the United Kingdom BSE outbreak, "the then Government Chief Scientific Adviser ( Lord May) published ''Guidelines on the Use of Scientific Advice in Policy-Making''; these have subsequently been revised, most recently in June 2010... The Government aterdeveloped the ''Principles of Scientific Advice to Government'', which 'set out the rules of engagement between Government and those who provide independent scientific and engineering advice.' The Principles apply to 'Ministe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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