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On this time last year, and considerably lower than injanuary — largely thanks to the success of the vaccines. these are uncertain times, but ministers, while emphasising the need to get vaccinated, are continuing to stress that people should plan for christmas as normal. hugh pym, bbc news. scientists are now, as a matter urgency, trying establish whether the new variant is more transmissible than the current delta variant, and whether it causes more severe illness. they'll also be assessing its impact on the effectiveness of vaccines. 0ur medical editor fergus walsh has more details. after...

Vaccines. these are uncertain times, but while officials argue it's not all doom and gloom, some ministers have been stressing people should plan for christmas as normal. hugh pym, bbc news. scientists are now in a race to establish whether the new variant is more transmissible than the current delta variant and whether it causes more severe disease. they'll also be assessing its impact on the effectiveness of vaccines. our medical editor fergus walsh has more. after alpha, beta, gamma, afteralpha, beta, gamma, delta, comes omicron, which scientists think could be the worst variant yet. is omi...

Effectiveness of one of our major treatments for covid—19, and as the chief medical officer said this weekend, there's a reasonable chance that our current vaccines may be impacted. scientists are now in a race to establish whether the new variant is more transmissible than the current delta variant and whether it causes more severe disease. they'll also be assessing its impact on the effectiveness of vaccines. our medical editor fergus walsh has more. afteralpha, beta, gamma, delta comes omicron, which scientists think could be the worst variant yet. so is omicron more transmissible? it app...

They'll also be considering its impact on the effectiveness of vaccines. here's our medical editor fergus walsh. afteralpha, beta, gamma, delta comes omicron, which scientists think could be the worst variant yet. so, is omicron more transmissible? it appears to be driving a rise in infections in south africa, but it's too early to be certain what's happening, as cases only started increasing ten days ago from a very low level. the world health organization said omicron shows why the world needs a new global agreement on how to prevent, prepare and respond to pandemics. we should all be wide a...