Health experts are warning that the unpleasant winter vomiting bug - which comes with days of sickness and diarrhoea - is on the rise again. Norovirus is highly infectious so people with it should stay away from workplaces, schools and shopping centres, to stop passing it on to others. Lesley Larkin, Lead Epidemiologist at UK Health Security Agency (UKHSA), said: “Norovirus cases are on the rise again as we head into winter. “Take steps to avoid passing the infection on. If you have diarrhoea