The Whanganui District Health Board is reassuring the community that essential health services will operate during the four-week Covid-19 alert level 4 period.
While Whanganui Hospital has adopted a restricted access policy, it will still treat acute cases and deliver essential services.
Whanganui District Health Board (DHB) chief executive Russell Simpson said there have been no cases of Covid-19 in the region.
A community-based assessment centre for possible Covid-19 cases has opened at the right of the hospital's main public carpark as people drive in.
The service is free and is open from 8am to 9pm, seven days a week.