Covid-19 vaccine may not work for at-risk older people, say scientists

Lords committee told children may have to be immunised to protect their grandparents

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A vaccine against Covid-19 may not work well in older people who are most at risk of becoming seriously ill and dying from the disease, say scientists, which may mean immunising others around them, such as children.

Prof Peter Openshaw, from Imperial, one of the members of the UK's Sage scientific advisory sub-group Nervtag, told the House of Lords science and technology committee it was this week considering a paper on targeting different groups in the population with vaccines.