Hosted by Robin Ince and Dr Helen Czerski this episode of the Science Shambles podcast is an audio recording of our weekly Sunday Science Q and A show that goes out at 3pm GMT on our YouTube channel. On this episode Robin and Helen are joined by Prof Dan Davis and Prof Sheena Cruickshank for a COVID-19 update, talking vaccines, variants and viruses. Watch them on our YouTube channel at youtube.com/cosmicshambles and get bonus content and extended conversations with guests by subscribing at patreon.com/cosmicshambles