Vaccines alone will not stop Covid spreading - here's why

Many of us are hoping vaccines against coronavirus will be our route out of lockdown, enabling us to reclaim our old lives. But scientists say jabs alone will not currently be enough and other measures are still needed. The 'Swiss cheese respiratory pandemic defence model' was first created by Ian M Mackay, a virologist at the University of Queensland, Australia. The infographic has been translated into more than two dozen languages. It is based on a concept originated by James T Reason, a cognitive psychologist, now a professor emeritus at the University of Manchester, UK. It is used in scientific circles when discussing mitigating risk.