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hello there. there s a renewed push in the uk for everyone eligible to get a coronavirus booster jab to come forward for one after british scientists warned that two vaccine doses weren t enough to stop people catching the omicron variant. early analysis suggests the booster reduces the chance of developing any symptoms by around three quarters. here s our medical editor fergus walsh. the omicron variant is spreading incredibly fast despite our highly immunised population. the growth rate is even more rapid than last christmas when the alpha wave hit and very few of us had been vaccinated. new analysis shows that having two vaccine doses is unlikely to stop omicron infection. however, boosterjabs will give around 75% protection against a mild infection. both two and three doses should give significant protection against severe disease, but to what extent is still unclear. it s the sheer growth rate of omicron, which is worrying scientists. it may produce the biggest wave of i
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