Will SARS-CoV-2, the cause of Covid-19, continue to circulate for years to come? What's the story with infection in children, and how is Kawasaki Disease involved? Are separate strains of the virus spreading in different countries and accounting for differences in severity? And will the virus mutate to sidestep a vaccine? Radio New Zealand National's Kim Hill talks to Chris Smith to find out... Like this podcast? Please help us by supporting the Naked Scientists