An Australian woman accused of murdering three people by dishing up a toxic mushroom-laced beef Wellington never asked after her dying guests' wellbeing, her husband told a court Friday.

Erin Patterson, 50, is charged with three murders -- the parents and aunt of her estranged husband -- and one attempted murder.

She has pleaded not guilty to all counts.

Her defence says the fatal beef-and-pastry meal, laced with death cap mushrooms, was the result of "a terrible accident".

On the third day of a trial that has made international headlines, the accused woman's husband, Simon Patterson, said she never asked him about his family's health as they lay in hospital.

"It intrigued me........

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