I was just looking at the Wikipedia page for "The Chosen One". Doesnt' this look familiar?
https://en.wikipedia.org/wiki/The_Chosen_One_%28TV_series%29
The Chosen One follows three young doctors, who travel to a village in the Pantanal in Brazil to vaccinate their residents against a new mutation of the Zika virus. They end up trapped in this community full of secrets and whose residents are devotees of a mysterious leader, who has the gift of curing diseases in a supernatural way.[4]