The number of new cases of human swine flu diagnosed by GPs remains stable, according to the latest figures released by the Department of Health and Children.
Around 1,500 new cases were seen in the week to last Sunday.
To date, 82 people have been hospitalised and, of these, 20 remain in hospital.
Four people are in intensive care. No new fatalities have been reported.
Dr John Devlin, Deputy Chief Medical Officer at the department said that most cases remain mild with good recovery.
The HSE says that small quantities of vaccine against human swine flu are in the country but are 'not yet in its possession'.
HSE head of population health Dr Pat Doorley said health staff would be the first to receive the vaccine.
Subsequently, a mass vaccination will be offered to the population at 60 clinics operated by around 1,000 HSE staff.
Results from the trial of the vaccine in the UK suggest that one dose of it may be sufficient to provide immunity.
The pilot study involving 100 healthy volunteers was run by the University of Leicester and Leicester Hospitals and found a strong immune response after just one dose.
The volunteers were aged between 18 and 50.
Dr Iain Stephenson, who led the trial at the Leicester Royal Infirmary, said that while immune responses were highest among subjects who received two doses of the Novartis vaccine, a single dose also induced responses associated with protection against influenza.
Read the HSE's information on swine flu
The HSE's 24-hour flu information line is available on freephone 1800 94 11 00.
