Tasmania's meningococcal vaccination program will be extended in the wake of three cases of the deadly disease in two weeks, including one fatality.

Health Minister Michael Ferguson was on leave as three cases of meningococcal disease sparked community concern about the illness and the accessibility of vaccinations.

Currently, people who wish to be vaccinated against the B strain of meningococcal disease in Tasmania require a private prescription of the vaccine which can cost hundreds of dollars.

Mr Ferguson said the Government would review the existing vaccination program, and he expected to have more to say next week.

"The Government will be reviewing our existing meningococcal vaccination program, which is state-funded," he said.

"We will be expanding it and we will be doing that on the advice of medical experts."

'We need to do everything in our power to protect children'

Opposition health spokeswoman Sarah Lovell criticised Mr Ferguson for not holding a press conference in the wake of the meningococcal disease cases sooner.

She pointed to the fact that despite being on holidays Mr Ferguson attended Liberal party events in St Helens on Thursday.

"It's not good enough that he's had nothing to say until today and only after continued pressure from many angles," Ms Lovell said.

Mr Ferguson defended his delay in commenting on the deadly bacteria earlier.

"I felt it was appropriate for our most eminent public health expert in Tasmania to be providing those reassurance to Tasmanians," he said.

People who work with children are calling for greater urgency from the State Government.

Early Childhood Australia president and Lady Gowrie Tasmania CEO Ros Cornish said parents were anxious and struggling to obtain vaccinations.

"We need to extend [the free vaccination program], we certainly need to include the B strain and we need to do everything in our power to protect children," she said.

Strain that affected baby boy still unknown

Last week, it was revealed that the 16-year-old girl who died earlier this month had contracted the W strain of the disease, while a 20-year-old man was struck down with the B strain.

A three-month-old baby boy is in a stable condition in the Royal Hobart Hospital after presenting last Thursday with the disease.

Health authorities expect to find out towards the end of the week which strain was involved in his case.

In Tasmania, vaccination against common meningococcal strains A, C, W and Y is available for 12-month-old children as part of the National Immunisation Program.

Tasmanian teenagers born between 1 August 1997 and 30 April 2003 are also eligible to receive the free meningococcal W vaccine at their local GP's office or some council clinics, funded by the State Government.

Vaccination against the B strain of the disease is recommended for infants, young children, adolescents, some medical conditions and some occupations.