Authorities in Samoa have asked unvaccinated families to display a red flag outside their homes to help a mass immunisation drive aimed at halting a
The tiny Pacific nation of 200,000 will so public servants can help the vaccination campaign.
Over the two-day period, teams will go door-to-door administering vaccines in a desperate bid to raise the low immunity levels in Samoa that have fuelled the epidemic.
Immunisation is compulsory under a state of emergency imposed last month and officials asked unvaccinated families to identify themselves.

A Samoan woman prays in front of a portrait of her lost child, who died as a result of measles. Source: TVNZ
"The public is hereby advised to tie a red cloth or red flag in front of their houses and near the road to indicate that family members have not been vaccinated," a public advisory said.
"The red mark makes it easier for the teams to identify households for vaccinations."
Official data released on Wednesday put the death toll from the outbreak at 60, up five on the previous day.

UNICEF is providing Samoa with an additional 100,000 measles vaccines. Source: UNICEF
Most of the dead are children, with 52 aged four or under.
Infection rates continued to climb, with 171 new cases in 24 hours, bringing the national total to 4,052.
Vaccination efforts in recent weeks have concentrated on children but the government has now broadened its programme to include the entire population.

Children with parents wait in line to get vaccinated outside a health clinic in Apia, Samoa. Source: TVNZ/AP
Samoa has received aid to combat the crisis from Australia, New Zealand, France, Britain, China, Norway, Japan, the United States and the UN.