Covid-19: how worried should smokers be?

With reports that there are lower rates of smokers being admitted to hospital with Covid-19 in France and trials to test whether nicotine patches can reduce the severity of infection, but also data showing that smokers are more likely to contract the disease and develop severe symptoms, what’s actually going on here? Sarah Boseley talks to Dr Nick Hopkinson to find out more. Help support our independent journalism at theguardian.com/sciencepod