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About 3,000 people are estimated to have died as a result, including former pupils at Lord Mayor Treloar College, near Alton, Hampshire, who were infected at a specialist NHS haemophilia centre on site.

In Belfast, Lord Mayor Micky Murray officially opened the book while Fr Tim Bartlett, the main organiser of the late Pope's visit to Ireland in 2018, was in attendance.

Lord Mayor of Belfast Cllr Micky Murray said he is "delighted" the event will be held in Belfast.

A former lord mayor of the city, Tom Hartley, and current councillor, Tracy Kelly, also believe something should be done to remember the dead.

His children were invited to the Lord Mayor's children's party.