Figures from the Department of health confirm that 19 people have been hospitalised for swine flu.

The National Public Health Emergency Team have been meeting to review the swine flu situation nationally.

University College Dublin has confirmed that seven language students are in quarantine in the university’s residences with suspected human swine flu.

The students are aged between 14 and 17 years and are believed to be from Italy and Spain.

Read HSE swine flu information

A spokesman for the university said that around 60 language students presented in recent days complaining of flu-like symptoms.

Of this group, 47 have been cleared by doctors while a further ten students are currently being assessed by a GP.

A number of language schools are using the university for classes and around 150 language students are on campus for the summer.

Meanwhile, the National Public Health Emergency Team is meeting this afternoon to review the swine flu situation nationally.

It follows figures yesterday showing that GPs have diagnosed 1,500 cases in the last week.

Two patients who contracted human swine flu are still being treated in intensive care units.

A man in his 30s, who was admitted to St James's Hospital last week, remains 'critically ill' with the virus.

It is believed the man, who is originally from Bratislava in Slovakia, contracted the virus abroad. He has been living in Ireland for several years.

The hospital said that all necessary precautions were being taken and that the Health Service Executive and the Department of Health were being fully informed.

Vaccine advice

Elsewhere, US health advisors have said about half the US population should get vaccinated against swine flu, .

Up to 160m doses of flu vaccine will be available for the start of a vaccination campaign planned for mid-October.

The Advisory Committee on Immunization Practices recommended that state and local health officials prepare to vaccinate as many as 160m people.

The committee recommended that pregnant women, people who care for babies and healthcare workers should be the first protected against the virus, a total of around 41m people in the US, in the event that not enough vaccine is available.

Children between the ages of six months and four years were also included in that group.

The vaccine was not recommended for infants under six months.

People at risk of serious complications from catching the flu should follow, including those with asthma, diabetes and heart disease and then healthy young adults aged 19 to 24, the panel said.

Members of the panel said young adults should be a priority because they are more likely to become infected and tend to work in places that would accelerate the flu's spread.

Pregnant women are at special risk from the new strain and vaccinating them protects their newborns, too, the CDC's Dr Anthony Fiore told the committee.

Surveys show that people over 65 are at lower risk of contracting (A)H1N1.

(A) H1N1 swine flu is now so widespread that the World Health Organization has stopped counting individual cases. Health experts are afraid it could worsen, especially when the northern hemisphere's influenza season starts in the autumn.

The HSE's 24-hour flu information line is available on freephone 1800 94 11 00.