London, 23 December 2021 (dpa/MIA) - The Omicron variant of Covid-19 is less likely to result in severe disease and hospital admission, British government public health experts announced on Thursday. Publishing preliminary findings of its research into the new variant, the UK Health Security Agency (UKHSA) said Omicron appears to result in less severe disease for those infected with it. However, the agency warned that the new strain is more transmissible than previous variants such as Delta, and could still lead to significant numbers of people needing hospital treatment in the coming weeks. Health Secretary Sajid Javid welcomed the latest data as "promising," but urged the public to remain cautious during the Christmas break, adding it was "still too early to determine next steps" The results of the research are consistent with that of two other early studies into Omicron by Imperial College London and the University of Edinburgh, both released on Wednesday. According to analysis by the UKHSA, the risk of hospital admission for an identified case with Omicron is reduced compared with a case of Delta. Someone with Omicron is estimated to be as much as 45 per cent less likely to end up in an emergency room compared with Delta, and as much as 70 per cent less likely to be admitted to hospital. However, Omicron is believed to be infecting more people who have previously had Covid, with 9.5 per cent of people with Omicron having had it before. Vaccination is also believed to give less protection against Omicron, although a booster jab provides more protection against symptomatic disease compared with the first two doses alone. Data suggests protection starts to wane 10 weeks after booster vaccination. The agency has also warned that Omicron's faster rate of transmission than Delta may mean that a large number of people are likely to require hospital admission. Javid said: "This new UKHSA data on Omicron is promising - while two doses of the vaccine aren't enough, we know boosters offer significant protection against the variant and early evidence suggests this strain may be less severe than Delta. "However, cases of the variant continue to rise at an extraordinary rate - already surpassing the record daily number in the pandemic. Hospital admissions are increasing, and we cannot risk the NHS [National Health Service] being overwhelmed. "This is early-stage analysis and we continue to monitor the data hour by hour. It is still too early to determine next steps, so please stay cautious this Christmas and get your booster as soon as possible to protect yourself and your loved ones."