'We don't want another lockdown' - Bolton schools urge parents to follow rules as Covid cases hit Surge testing is taking place in certain areas amid concerns over rise of Indian variant Updated Parents are being reminded to get tested and follow the rules amid Covid cases in Bolton schools. Parts of Bolton are seeing an escalation of surge testing amid growing concern over the continuing rapid rise of coronavirus in the borough. Cases of both the South African and Indian variants have been discovered in the town, where the infection rate is four times the England average. There have been a number of bubble closures in Bolton schools, with headteachers warning families to carry on following the rules.