6 May 2009 -- The Ministry of Health has reported a new confirmed case of human infection with the H5N1 avian influenza virus. The case has been confirmed at the National Institute of Hygiene and Epidemiology (NIHE).

The case is a 23 year old woman from Quan Hoa District, Thanh Hoa Province. She developed symptoms on 16 April, was hospitalized on 21 April, and died on 22 April.

Investigation into the source of infection indicated poultry died of influenza A/(H5N1) around her household.

Of the 111 cases confirmed to date in Viet Nam, 56 have been fatal.