A Gold Coast beautician identified as Queensland's sixth coronavirus victim had "brief interactions" with clients at Australia Fair Shopping Centre before she was placed in isolation.

The 63-year-old woman returned from Iran on Monday and began working at Hair Plus on Thursday morning from 11am.

She saw between 30 and 40 clients for treatments including facials and waxing before she went home sick.

Once her symptoms worsened, she went to the Gold Coast University Hospital, where she was taken into isolation after testing positive for coronavirus.