Two Dead From Listeria Linked to Salmon

Fresh wild and farmed Loch Duart salmon filets are seen on a tray at the San Francisco Fish Company April 11, 2008 in San Francisco, Calif. Justin Sullivan/Getty Images

Two elderly people in NSW and Victoria have died after contracting listeriosis linked to contaminated smoked salmon from Tasmania.

The Australian Department of Health is also investigating a Queensland case of the infection, which is caused by listeria bacteria.