Tasmanian Public Health says there's no evidence former LGH worker contracted COVID locally

Dr Mark Veitch described the approach as precautionary, after releasing a list of potential COVID-19 exposure sites in the state.

A number of sites in Launceston and Southern Tasmania were listed as Level 2 - Casual Contact sites on Saturday morning.

A number of local businesses have been impacted, after Public Health contacted them to ensure staff isolate and get tested.

Dr Veitch said the healthcare worker left the state on July 2, testing negative prior to leaving.

They arrived in London on July 3, after transiting through Melbourne and Singapore - with a test in London on July 4 returning a positive COVID-19 result.

"There is currently no evidence that this person contracted COVID-19 while they were in Tasmania, or was infectious while they were in Tasmania, however Public Health services is taking a precautionary approach to ensure there is no risk to the Tasmanian community," Dr Veitch said.

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Anyone who was at one of the exposure sites is being urged to immediately self-isolate and contact the Public Health Hotline on 1800 671 738 to arrange a test.

"The person last worked at the Launceston General Hospital on June 20," Dr Veitch said.

"There is currently no evidence this person posed any risk to staff or patients at that time."

Wastewater testing in the state did not return any positive tests for COVID-19.

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