How to book the 4th Covid jab: Who can get the spring booster vaccine and when other groups could be eligible

In England, a second Covid-19 booster vaccine is being rolled out this week, with those in vulnerable groups able to come forward to receive a fourth jab. It comes as cases rise sharply again across the country, thanks to restrictions ending and the emergence of a highly infectious BA.2 offshoot of the Omicron variant. More than 552,000 people have reported testing positive in the last seven days – a 38.1 per cent increase on the week prior.