The seasonal flu vaccine programme has been extended to the end of August.
Associate Health Minister Jo Goodhew said today that winter flu cases were rising and had not yet peaked.
"As the peak is still to come hospitals are likely to see more people with the illness, so it is worthwhile to extend the funded vaccination season."
The vaccine was due to be funded until July 31.
The seasonal influenza immunisation programme is free for people aged 65 years and over, pregnant women, people with long term health conditions such as severe asthma, and children under five years who have been hospitalised for a respiratory illness.
