US Peace Corps to return to Fiji, Tonga, Samoa, Vanuatu.

SAMOA-POLITICS-CHINA-INT:Samoa's disputed leader promises Chinese-backed port at a third of the cost

The epidemic has infected more than 4,200 and killed over 60 people, mostly babies and young children.

The Samoan gov't announced that the most affected demographic are children under four-years-old.

The vast majority of deaths were of children, with 48 under the age of four dying from the disease, according to a gov't update.