doses of a covid vaccine, but how long that protection lasts is a crucial question. sarah, a head teacher, received her second dose in april, but injune, after herfamily all caught the virus, she became infected too. 0bviously, i'd been shielding at home, i'd been staying in different rooms, keeping doors and windows open, wearing masks in communal areas of the home. so i'd hoped not to get it with my double vaccine, but i knew there was always a possibility of getting it. it was obviously very disappointing to get it in the end, and my symptoms were just like that of a heavy head cold, really. i didn't have to stop working, i was working from home throughout that period. i had to rest a little bit more than usual, but i felt like it was a much lighter version than i had the year before. sarah's one of a growing number of people who've been infected despite being double—jabbed. today's study by the zoe covid team