HealthWhy has the UK been so slow to vaccinate children against covid-19? Compared with other high-income countries, the UK has been slow to approve and roll out covid-19 vaccines to teenagers, prompting concerns over long covid and the new omicron variant Insight
HealthTwo covid-19 vaccines are 15 per cent less effective against delta A large UK study shows that two doses of the Pfizer or AstraZeneca vaccines provide good protection against symptomatic infections by the delta coronavirus variant, but not as good as against older variants News