"Our deliveries come via courier van and this is the first time we have suffered such a delay."
So far in Whanganui, 1864 people have been fully vaccinated while 3256 have received their first dose.
Whanganui is currently ahead of schedule, according to data from the Ministry of Health, by almost 1500 doses as at May 16.
The DHB is still in the process of vaccinating group 2, which includes frontline healthcare and emergency workers, staff working in long-term residential care and their residents, as well as older Māori or Pacific people being cared for by whānau.
Those in vaccine group 3 are now also being vaccinated by the DHB, including those aged 65 or over, those with relevant underlying health conditions, Māori and Pasifika aged 50 and over, and people with disabilities.
People in those groups can arrange an appointment by phoning 0800 888 479.