Rockmelons recall

Australians have been urged to throw out rockmelons they have previously purchased after a listeria outbreak that has left two people dead in New South Wales. But what is listeria, and what how does it relate to rockmelons?

Australians are being warned not to eat rockmelon after dozens were struck down by a rare strain of salmonella linked to a Northern Territory farm. Source: AAP Image/Mick Tsikas