At this current moment Médecins Sans Frontières (MSF) is undertaking a mass vaccination campaign against measles in the Am Timan region in Chad. The goal is to vaccinate all children below the age of 10. People will come to a vaccination point in a key village in their area to receive a vaccine against measles. After the campaign a vaccine coverage survey will be set up to understand if we effectively vaccinated enough children in every village to prevent a measles outbreak. Your swiping is helping MSF in detecting all the villages in the area, and will reassure us that we cover all villages in our survey.