"I made sure everyone in my family and the village were vaccinated. Community health nurses visited the village and we told them everyone was vaccinated.
"There are barriers like no transport and cost of vaccinating people. Traditionally, Samoa had village committees that worked with public health nurses but that's no longer done," she said.
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In 2009, Maddren was part of a medical team of 30 Samoans from New Zealand sent to Samoa after tsunami ravaged the small island nation.
On her recent trip, nurses at the local hospital recognised her when she took her sick brother for treatment.
"None in my village had measles so the impact wasn't felt as badly. The difference was kids who were not allowed to go to public places so you wouldn't find them in public places, at church services, the schools closed early or around mid-November, and no prizegivings.
"During the two-day lockdown, things were very eerie but people were quite accepting because by then the death toll has risen to 70."