Fifteen people have now been confirmed infected in the South Island measles outbreak.
The serious illness began to spread in late January after a 30-year-man was diagnosed in Christchurch. It then spread to Nelson, Queenstown and Wanaka.
Today, Community and Public Health confirmed another case of measles in Christchurch.
Medical Officer of Health Dr Cheryl Brunton says measles is a serious illness and is highly contagious. People with measles are infectious for several days before the characteristic rash appears and the disease is very easily passed from one person to another through the air.
If you are not immune to measles you are at risk of getting the disease. People are only considered immune if they have received two doses of MMR vaccine or have had a confirmed measles illness previously or were born before 1969.