Samoa's government declared a measles epidemic in mid-October.
Two young children and a man, 37, have died, after clinical signs indicated they had measles.
Ministry chief executive Leausa Dr Take Naseri said a number of clinics had been closed to focus resources around the epidemic.
"We have modified our operations. We have closed down most of our general outpatient clinics so that we can mobilise - so staff can focus more on the alarming rates of the public that is coming in."
