This week, we are boosting our knowledge on what "immunity" against COVID-19 really means and what our strategy heading into winter should be. We'll also hear about a new generation of coronavirus vaccines to better protect us in future. Plus, in the news, signs that living through the pandemic is having a serious impact on early childhood development, leaded petrol disappears from the last service stations, and the new wooden floor that generates electricity when you walk on it... Like this podcast? Please help us by supporting the Naked Scientists