Indigenous nurse of the Misak ethnic group Anselmo Tunubala, 49, gets vials of the Sinovac vaccine against COVID-19 out of a freezer to look for elderly people to apply them in the Guambia indigenous reservation, rural area of Silvia, department of Cauca, Colombia, on April 15, 2021. - Tunubala sweeps the mountains every day looking for elderly people from house to house, and explains them the importance of the vaccination against Covid-19 in their native language. There is widespread rejection to the COVID-19 vaccine among indigenous people in this community due to their belief in an ancestral plant-based medicine and the recommendations of religious leaders. (Photo by Luis ROBAYO / AFP)