The Victorian government has allowed its teacher vaccine mandate to lapse this week, but Tasmania will not say whether it will follow suit.

The public health emergency declaration will finish on June 30, after which it will be up to individual departments to decide whether vaccine mandates are applied going forward. The Health Department has confirmed it will continue to require staff to be vaccinated.

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When asked whether the vaccine mandate would be lifted, the Department of Education pointed to its COVID-safe schools operational plan. This includes a requirement for staff to be vaccinated, but has no information beyond the end of the current term.

The department also would not say how many staff had been stood down or lost their job as a result of the mandate.

Public Health director Mark Veitch said the mandates had helped Tasmania achieve a high vaccination rate, including in areas where staff come in contact with at-risk people such as in health, aged care and disability services.

He said vaccination had proven to be less effective at slowing transmission, but more effective at reducing hospitalisations and deaths.

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"Most of the heavy lifting of the vaccination mandate sought to achieve, has been achieved," Dr Veitch said.

"However, those organisations and businesses may still choose to require or recommend their staff be vaccinated, subject to their own risk assessment of their particular circumstances."

Masks will no longer be required on public transport, in schools and in childcare from Friday, and in hospitals, healthcare settings, aged care and disability care from next Friday, unless otherwise directed by individual businesses and organisations.

Tasmania's daily case count was above 1000 for three days straight, which Dr Veitch put down to several factors.

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"Firstly, that would include the mincing and movement of people at events," he said.

"It'll also include the fact that we're moving into winter and people tend to spend more time indoors, perhaps more time at home, and those sort of circumstances are also conducive to spread.

"Furthermore, we're also seeing an increase in the proportion of cases that are due to the BA.5 and 4 Omicron variants. We know that these variants are slightly more infectious than the BA2 strain that we've been seeing for some months."

Tasmania has seen several hundred COVID reinfections, but Dr Veitch said at this stage these did not appear to be more severe than the initial infection.

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