Published Thursday, 18 June 2009
It brings to 13 the number being treated for the virus in the province.
Another seven possible victims are under investigation.
The Department of Health, Social Services and Public Safety said the latest case was a woman who recently returned from the United State.
A statement said she had mild flu symptoms and was recovering at home.
It added: "The Public Health Agency is arranging a follow-up of people who were in close contact with her since she developed symptoms."