New figures have revealed as many people were diagnosed with HIV in the first half of this year in Northern Ireland, than in the whole of 2006.

A total of 54 people were diagnosed by the end of June, in comparison with 56 two years ago. Last year - 2007 - 65 new cases were recorded.

The shocking figures were announced on World Aids Day.

It is thought since the emergence of the virus over a quarter of a century ago, almost 600 cases have been reported in Northern Ireland.

HIV is a virus that attacks the body's immune system - the body's defence against diseases.

Dr McBride said: "In Northern Ireland the incidence of HIV is relatively low in comparison with the rest of the UK - however we cannot be complacent."

"The latest figures for Northern Ireland indicate a worrying surge in new diagnoses of HIV.

"I am also very concerned by provisional figures for the first half of 2008 which would indicate further substantial increases in the numbers this year.

"It is vital that people look after their sexual health. As Chief Medical Officer I will continue to advocate for the prevention of HIV and other sexually transmitted infections in the context of an overall approach to good sexual health," he added.

According to the World Aids day website, 80,000 people are living with HIV in the United Kingdom.