He said Corrections ensured only staff with confirmed immunity were working with the isolated prisoner, continuing to proactively monitor all prisoners on site for any symptoms of infection, and taking advice from Public Health Northland about vaccinations for prison employees and prisoners.
"As you are aware, there have been a significant number of confirmed cases of measles in the community. Because of this, we have been vigilant in ensuring that prisoners and staff are well informed about the symptoms of measles and how to prevent infection from spreading by supplying them with information from health agencies, and will continue to reiterate the importance of this."
The prison had 595 prisoners as of 4pm yesterday.The number of confirmed cases in Northland reached 77 as of Friday last week, data from the Institute of Environmental Science and Research showed.
Of that number, 15 have been hospitalised.
There has been an increase in measles cases among primary school-aged children in and around Kerikeri, Whangārei, and Kaiwaka.
Most are in the 5 to 14-year age group, followed by under 5 years.