Getting the river blindness treatment drug, Mectizan, to thousands of settlements posed a challenge to health authorities, until locals like Sebastian Adritia stepped forward.
The woodcutter, who himself suffers from the parasitic illness, gathers people in his community when the day for drug distribution arrives.
"People of Anguru. We are blessed to get our medicine for the filaria," announces Adritia, armed with just a megaphone.
"Take this opportunity everyone! Nobody must miss this drug distribution. It won’t cost you anything."
Adritia says he volunteers because it makes his people happy to know when the treatment arrives.
"Whenever they hear the distributor has come here they rush for the drugs," he says. "So you will see, people will come in good numbers tomorrow."
The drug is distributed to entire communities not just to those with the disease. Sebastian Adritia is one of many health heroes of Lifelines: The Quest for Global Health.
Lifelines: The Quest for Global Health will air on Al Jazeera in 2014.