Unprecedented state-of-emergency orders come into force in Samoa today in a major push to get everyone immunised against measles.
Since the outbreak began in October, 60 people have died and there are more than 4000 confirmed cases of the disease.
The country is shutting down for two days so mobile medical teams can visit people at home who haven't been vaccinated and give them the jab.
The lockdown applies to almost everyone except essential services. Private vehicles are also banned on the roads from 7am until 5pm today.
More than half the country has now been vaccinated, but in the next 48 hours, the government aims to boost that to at least 90 percent.
Checkpoint reporter Alex Perrottet, who is in Apia, says the orders are very strict and mobile vaccination teams will stop at every home with a red cloth or flag shown outside, indicating unvaccinated people inside.
"Every single family must stay in their home... they can't go outside. And if there is someone in their house who has not been vaccinated they must take a red cloth or garment and go to the front fence or the front of their house, or put it on a pole, but make it very, very visible that their is a red cloth outside their house, which tells the mobile vaccination units that there is someone in there that is yet to be vaccinated," Perrottet reported.
With the shutdown underway, some grieving parents have been rushing to bury their young.
Sole parent Lanuola Naseri was rushing last night to bury her only son, four-year-old Tivoli.
She said she went to ask for help from the Samoa Victim Support Group, because she couldn't afford the white garment to dress her son for burial.
"Why I came to Victim Support today is [because] I'm seeking help for some money to buy the burial suit for my son, and also just trying to see if I'll be able to get some money to help with the food."