Operation Ouch! - Series 8: 12. Virus Alert!

Name: Operation Ouch! - Series 8: 12. Virus Alert!
Description: Dr Chris puts Dr Xand inside a giant water balloon to show how viruses attack our bodies, and Dr Chris discovers how the shape of your ears enables you to hear.

Dr Chris puts Dr Xand inside a giant water balloon to show how viruses attack our bodies, and Dr Chris discovers how the shape of your ears enables you to hear.