The number of new swine flu cases in Ireland has risen significantly.

Latest figures from the Health Protection Surveillance Centre (HPSC) show that at 91, the number of confirmed cases of the H1N1 virus last week was three times higher than the number the previous week.

The number of people presenting at GPs with flu-like symptoms has risen tenfold since November.

The HPSC says that swine flu has made up almost 90% of the 120 confirmed cases of influenza so far this season.

34 of the swine flu cases required hospitalisation, while five people required treatment in Intensive Care.

The HPSC says the overall number of flu cases is above baseline levels, with the highest rates per population size reported among 0-4 year-olds and 5-14 year-olds.

19 of the confirmed cases of flu were among pregnant women, and 18 of those had swine flu.

Seven pregnant women with swine flu required hospitalisation.

During the last flu season, 24 people with H1N1 died.

The HSE has urged anyone who has not already received the seasonal flu vaccine, which protects against the H1N1 strain, to get it.

It has particularly urged pregnant women or those who have recently been pregnant, those with long-term medical conditions, people aged over 65, carers, and healthcare workers, to consider getting vaccinated.