Tag Archives: Delta variant

Omicron XE is spreading in the UK – a virologist explains what we know about this hybrid variant

Andrii Vodolazhskyi/Shutterstock Grace C Roberts, University of Leeds As the COVID pandemic has progressed, we’ve repeatedly seen the arrival of new viral variants. Variants of concern, such as delta and omicron, are versions of SARS-CoV-2 (the virus that causes COVID-19) which have acquired mutations. These mutations can provide SARS-CoV-2 with a genetic advantage – so for example, delta is linked …

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Omicron FAQ: How is it different from other variants? Is it a ‘super-variant?’ Can it evade vaccines? How transmissible is it?

The Omicron variant has been confirmed in all continents except Antarctica. (Pixabay/Canva) Dasantila Golemi-Kotra, York University, Canada Omicron, the first COVID-19 variant to have been upgraded to a variant of concern (VOC) by the World Health Organization (WHO) in a matter of days, came on the radar of the Lancet Laboratory in South Africa, on Nov. 8, although it is …

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Omicron: evidence shows it evades immunity from earlier infection more than other variants

South Africa is seeing a spike in COVID-19 cases. EMMANUEL CROSET/AFP via Getty Images Cari van Schalkwyk, South African Centre for Epidemiological Modelling & Analysis (SACEMA) ; Harry Moultrie, National Institute for Communicable Diseases, and Juliet Pulliam, South African Centre for Epidemiological Modelling & Analysis (SACEMA) Scientists are working around the clock to get a better understanding of the Omicron …

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Will omicron – the new coronavirus variant of concern – be more contagious than delta? A virus evolution expert explains what researchers know and what they don’t

The omicron variant possesses numerous mutations in the spike protein, the knob-like protrusions (in red) that allow the virus to invade other cells. Juan Gaertner/Science Photo Library via Getty Images Suresh V. Kuchipudi, Penn State A new variant named omicron (B.1.1.529) was reported by researchers in South Africa on Nov. 24, 2021, and designated a “variant of concern” by the …

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COVID-19 vaccines: why it’s important you get your second dose

Rebecca Aicheler, Cardiff Metropolitan University Vaccination is the safest way to gain immunity to the coronavirus, and with most COVID-19 vaccines, you need two doses to get the greatest possible protection. Immunologists call this method of giving people multiple doses “prime-boosting”. Essentially, you first teach the immune system what it is looking for – you prime it with the first …

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