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Over the next couple of weeks almost all children in the UK will be back to school. But the pandemic hasn’t ended, and we are far from having a complete understanding of how this virus works, including how it is transmitted and how it affects younger people. Pretty much everyone is in agreement that kids need to be back at school, as the costs of not being physically in classrooms are great - for the education of kids, for their mental health, and for the finances of parents needing to work. But what does the science say about the risks for schools reopening? Will we see a rise in infections in younger people, and hot-spots for the wider community? Adam Rutherford discusses these issues with Paul Hunter, Professor of Medicine at Norwich Medical School, and he finds out from Professor Tim Spector if his Kings College COVID symptom tracker app can shed any more light on whether children display the same COVID symptoms as adults, or could we be missing infections in the young?

Marnie Chesterton eavesdrops on an aquatic autopsy. We pollute the oceans with noise that has some serious effects on marine life. Remotely via video link up, Marnie witnesses a complex autopsy on the inner ear of a dolphin. She discovers how accurately the death of the sensory hair cells in a cetacean’s ear records the time of damage.

Presenter – Adam Rutherford
Producer – Fiona Roberts