The 62-year-old manager of the city s Portuguese Family Centre is among the new cases.
He is suffering from some symptoms including aches and pains, it was earlier reported.
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However, Chief Health Officer Dr Jeannette Young has said she is not concerned about the outbreak, considering all the close contacts are currently in quarantine.
It s not known how the woman, who had not been working but had flown to Australia from Portugal as a passenger, caught the virus.
It is suspected to have spread from another floor of the hotel quarantine.