Bacteria

11 October 2016

Does regular hand soap actually kill germs?

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09 May 2013

We find out if those who live in a city have a stronger immune system in the long term. Plus we ask, what is wind and...

15 July 2012

If the bacteria that cause a bout of food poisoning came from your own intestines, will you be protected against...

13 May 2012

What is it that gives toenails their cheesy aroma?