While the contamination has only impacted two brands, Queensland Chief Health Officer Jeanette Young advised anyone who bought strawberries in Queensland, New South Wales or Victoria since early last week to get rid of them if they were anxious and especially if they were not sure what brand they were.
Police launched an investigation on Sunday after a Queensland man reported swallowing a contaminated berry.
"It snapped in half, my knee-jerk reaction was to swallow, and I found the other half of the needle in the strawberry", he said.
The advice was late on Thursday (Sept 13) expanded after police in Australia's north east said they had received four complaints about needles with Donnybrook branded strawberries.
Acting Detective Chief Superintendent Terry Lawrence said this appeared to be a copycat incident, but police would always keep an open mind.
'We will update the Australian public as news becomes available to us'.
"Yesterday, I said anyone that had bought those products since the start of last week needed to dispose of them", Dr Jeanette Young said on Thursday.
He urged anyone who found a needle in a strawberry to call police on 131 444, particularly if they still had the packaging.
Dr Young said she was particularly anxious about those who may have frozen the strawberries for use later and may not still have the packaging.
Earlier this week, Woolworths said anyone who'd purchased any of the affected brands could return them to their local store for a full refund.
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"Any strawberries that you are certain are not the brands Berry Licious and Berry Obsession, are safe".
The suspected copycat incident, reported at a supermarket in Gatton, involves the discovery of a thin metal object in a punnet of strawberries.
The Queensland Police Service said it was investigating the contamination relating to sewing needles inserted in strawberries.
A mother of three in Gladstone also found two needles in a punnet while cutting up the fruit.
The Queensland Strawberry Growers Association believes a disgruntled farm worker may be responsible but police say they are investigating all aspects of the strawberry transit process.
Queensland chief health officer Jeannette Young said given the additional cases she was now advising shoppers to cut up strawberries before consuming them.
The growers association released a statement acknowledging the reports.
On Wednesday, a Queensland woman narrowly avoided feeding contaminated strawberries to her son, posting photos of the fruit online.
Consumers across all three states have been urged to chop up or throw out berries purchased in the past week as police seek a culprit for the sabotage.
"Woolworths takes food safety very seriously and we are looking into these claims with our supplier", the company wrote.