Here's how dogs are trained to sniff out medical conditions

Meet Kiwi!

She's a specially trained medical dog who uses her sense of smell to sniff out if someone has a condition like malaria or Parkinson's disease.

It's been found that people give off particular smells when they are suffering from some illnesses, which the dogs are trained to recognise.

Scientists will soon start tests to find out if the dogs can be trained to spot if someone infected with coronavirus.