The number of measles cases in the Marshall Islands capital, Majuro has nearly tripled in the past week with 56 confirmed cases reported at Majuro Hospital.
There were 21 reported cases late last week.
Public Health director, Dr Kennar Briand, says most of those affected are teenagers but there are also cases as young as six months and people in their 20s and 30s.
The Ministry of Health has launched an outreach vaccination programme that aims to immunize people between the ages of 6 months and 30 years of age.
