What does appearance of Omicron mean for the double-jabbed?

We find out how much protection Covid vaccines may offer amid speculation new variant could be more resistant

The emergence of Omicron has prompted widespread speculation that it may be more resistant to Covid-19 vaccines than existing variants, including Delta. But what does that mean for the average double-vaccinated person?

All the vaccines currently available in the UK work by training the immune system against the coronavirus spike protein – the key it uses to infect cells by binding to the ACE2 receptor. Omicron possesses more than 30 mutations in this protein, including 10 in the so-called “receptor-binding domain” (RBD) – the specific part that latches on to this receptor. Delta has two RBD mutations.

Continue reading...

Coronavirus | The Guardian

Comments

Post a Comment

Popular posts from this blog

NSW Covid update: 65 new cases as GP clinics and pharmacies drive new spread of virus

Gladys Berejiklian says people should call ahead before visiting health services and warns of higher numbers tomorrow Follow our Covid live blog for the latest updates Latest NSW lockdown rules explained Full list of Covid exposure sites and hotspots in Sydney Download the free Guardian news app ; Get our morning email briefing People visiting GP clinics and pharmacies while infected have been identified as a new driver of the spread of Covid, particularly in south-west Sydney, prompting the premier to urge people to stay at home and call ahead before visiting health services. Cases announced today also include a Covid-positive patient who attended Liverpool hospital, and a staff member at Chris O’Brien Life House, a cancer centre in Sydney’s inner west. The latter case was picked up during routine testing of staff, and further urgent testing is under way. Continue reading... Coronavirus | The Guardian
Read more

Ministers accused of sowing confusion over England’s travel advice

Government criticised for sending out mixed messages about traffic-light system for foreign travel Coronavirus – latest updates See all our coronavirus coverage Ministers have been accused of sowing confusion over what foreign travel is permitted for people in England after sending out mixed messages relating to its traffic light system. On Wednesday, the education minister Gillian Keegan urged people to be “sensible” and not travel to “amber list” countries for holidays, but her comments followed differing advice the day before. Continue reading... Coronavirus | The Guardian
Read more

Omicron could overwhelm NHS if it is as virulent as Delta, Neil Ferguson says

Exclusive: UK already experiencing ‘very explosive wave of infection’ from new variant, top scientist says Coronavirus – latest updates See all our coronavirus coverage The Omicron variant has the potential to “very substantially overwhelm the NHS” and cause up to 10,000 hospitalisations a day if it is as virulent as Delta, according to a leading scientist who helped shape Britain’s coronavirus lockdown strategy. Prof Neil Ferguson, a mathematical epidemiologist from Imperial College London, said the UK was already experiencing a “very explosive wave of infection” from the new variant. This could lead to “quite an explosive wave of hospitalisations,” depending on the severity of disease caused by Omicron. Continue reading... Coronavirus | The Guardian
Read more