Manchester news What we know about the new Brazilian variant of coronavirus Manchester united news

MetiNews.Com - Scientists are looking into a new strain of coronavirus discovered in South America

Manchester news What we know about the new Brazilian variant of coronavirus Manchester united news

MetiNews.Com - Scientists are looking into a new strain of coronavirus discovered in South America

Manchester news  What we know about the new Brazilian variant of coronavirus Manchester united news
14 January 2021 - 18:46

Breaking News ! A new strain of coronavirus that the Prime Minister said he is 'very concerned' about has been identified in Brazil. Little is know about the new variant currently but scientists are trying to find out whether it could cause more severe disease, or have an impact on the effectiveness of vaccines. Boris Johnson told MPs yesterday that he was “very concerned” about the variant, and the government has now implemented a travel ban on 16 countries to reduce the risk of it being imported into the UK. Here's what we know about the mutated virus from Brazil and what impact it may have on the pandemic. Why is there a new strain? Mutations in viruses are very common and occur when there is a change in the viral genome. There have been many mutations in Sars-CoV-2, the virus that causes Covid-19, since it emerged in 2019, some more significant than others. In simple terms, a virus delivers a set of instructions into a cell in the body and the cell follows these instructions to make more new virus. The instructions are replicated, so that each new virus that is created gets a single copy of the copied code. Sometimes there is a mistake in the instructions, and when this virus infects a new cell it will either fail, or the virus will continue to replicate the mutated code. What is different about the new Brazilian strain? Experts detected the new variant circulating in December in Manaus, north Brazil. It is not yet known if the mutation causes more severe Covid-19. The Brazilian variant has three key mutations in the spike receptor binding domain (RBD) that largely mirror some of the mutations experts are worried about in the South African variant.

. Why is the new strain concerning? Scientists analysing the Brazilian variant say the mutations it shares with the South African variant seem to be associated with a rapid increase in cases in locations where previous attack rates are thought to be very high. They say it is therefore essential to rapidly investigate whether there is an increased rate of re-infection in previously exposed individuals. Will the new variant have an impact on the effectiveness of vaccines? Like the South African variant, the Brazilian one carries a mutation in the spike protein called E484K, which is not present in the UK strain. The E484K mutation has been shown to reduce antibody recognition, helping the virus to bypass immune protection provided by prior infection or vaccination. Read More Related Articles Pharmacist describes 'biggest single day of career' as vaccine roll out starts Read More Related Articles Previous Covid-19 infection 'provides some immunity for at least five months' Vaccines are still likely to be effective as a control measure if coverage rates are high and transmission is limited as far as possible. However, experts say it is still too early to tell whether the current vaccines will be effective against the Brazilian and South African variants, while it is thought they will work against the UK variant. A new coronavirus jab could be manufactured within just 30 to 40 days if a variant of the virus is found to be less responsive to the vaccines available, according to Nadhim Zahawi, vaccine development minister. Experts say the new vaccines are essentially like emails that we send to the immune system, and are very easy to tweak. What are scientists looking at now? Experts now need to grow the variant in the UK in order to perform laboratory experiments on it, according to Dr Susan Hopkins, deputy director of the national infection service of Public Health England (PHE). Scientists need to understand the biology of new strains, as well as understanding mutations. The key thing they are currently looking at is whether the mutations mean the virus escapes the immune response.

Source = MetiNews.Com

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Manchester news What we know about the new Brazilian variant of coronavirus Manchester united news


Manchester news What we know about the new Brazilian variant of coronavirus Manchester united news


Manchester news What we know about the new Brazilian variant of coronavirus Manchester united news


Manchester news What we know about the new Brazilian variant of coronavirus Manchester united news

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