'Smoked salmon' listeria kills two in Australia Published duration 24 July 2019

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Two people have died from listeria infections in Australia after probably eating contaminated smoked salmon, officials say.

A third person also contracted the illness - known as listeriosis - but survived. The three cases happened in different states.

Local media reports the contamination is believed to originated in Tasmania, which produces most Australian salmon.

Health officials warned people most at risk to avoid certain foods.

The people who died were both aged above 70 and had underlying health conditions, said Australia's chief medical officer Prof Brendan Murphy.

The Tasmanian government said the state's salmon producers had been cleared of food safety breaches following the listeria cases in Victoria, New South Wales and Queensland.

Officials said pregnant women, the elderly, infants, and those with weakened immune systems were most at risk of severe symptoms.

"This is a timely reminder for people to ensure that food is handled, prepared and stored safely, and that those most at-risk of listeriosis avoid certain foods," Prof Murphy said in a statement on Wednesday.

What is listeriosis?

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It can be caught from food containing listeria bacteria, or close contact with farm animals

Cases usually involve unpasteurised milk or dairy products, such as camembert and brie

Pre-packed foods, including sandwiches and paté, can also contain listeria

Symptoms include high temperature, flu-like symptoms, vomiting and diarrhoea

Most people infected display no symptoms, but elderly and very young people are vulnerable

Source: NHS

Last year, a listeria outbreak traced to rockmelons killed seven people across Australia.

media caption South Africa is facing the world's biggest listeriosis outbreak

Other nations have also seen recent outbreaks. One in South Africa killed 180 people and was said to be the worst in history.