So even with Delta if you are <40 years old and unvaccinated your chances are 0.1%, if vaccinated 0.01 % both very low and on a par with annual seasonal influenza.. So nothing to see here, please move along-
If >40 and vaccinated - ie vast majority of UK population the AZ vaccine is proving very effective ( despite the smear campaign against it by makers of Pfizer, Moderna etc because it is too cheap and affecting their profits LOL ). So nothing much to lose sleep over.
A lot of journalists ( and government scientists ) are lazy and keep on about 'infections' doubling, quadrupling, going up sharply or whatever, when the real problem is serious illness and death, which is not even vaguely following infections. We need less mindless sensationalism and more 'proper' journalism, which is getting harder and harder to find ( boring facts do not sell newspapers ).