We took swabs from six vans in a variety of different trades, sampling 12 areas in each van. We also took a sample of the air from within the cargo area.

The microbiology team at the University of Essex then analysed all samples to detect what bacteria might be present in each area.

We also surveyed car and van drivers (500 of each) to discover their cleaning habits when it comes to their vehicles.

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More info on the vans that we tested The germs Explore our other van tips and guides