toilet designs
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Event showcases the toilets that could save lives

22 March 2014 Last updated at 13:59 GMT

For lots of people around the world, a toilet is a luxury they don't have.

It's thought that 2.5 billion people on Earth haven't got a working loo, and it means really serious diseases spread easily in poorer countries.

Now a big event is taking place in India aiming to invent the toilet of the future, which could change the lives of billions...

Check out Ayshah's report