More than four in five eligible adults aged 18 or over have now had their Covid booster vaccine. The NHS ramped up capacity last month to roll out booster jabs. So far, more than 30 million adults have now had their booster dose, which is 80% of those eligible, including nine in 10 people aged 50 and over. Sixteen and 17-year-olds will able to get a Covid booster jab from Monday. About 40,000 teenagers will be eligible for their top-up dose when the national booking service opens at the start of the week. Previously, boosters were only recommended for clinically vulnerable 16 and 17-year-olds who are most at risk from Covid-19.