The loss of smell and taste is now considered one of the major symptoms of Covid-19 and it can have a huge impact on people’s lives - especially when these senses do not return after someone has recovered from the disease. Host Nuala McGovern hears from people in Costa Rica, the US and the UK about how it has affected their lives - from coffee that has become too pungent to drink and steak that tastes metallic - to being unable to smell fresh paint or the natural scent of a child.