GIVE UNDER-40S VACCINE CHOICE, OFFICIALS URGE

British officials said Friday people under 40 should be offered an alternative to the Astrazeneca's vaccine due to a small risk of blood clots, given the low number of cases and the availability of other shots.

Britain will still offer a first dose of COVID-19 vaccine to all adults by the end of July. Previously, advice was only for people under 30 to be offered an alternative vaccine. There have been 4.5 deaths per million doses in the 30- to 39-year-old age group, compared to 2.1 deaths from clots per million doses overall.