Surra is a deadly threat to Sumba horses

Surra is a fatal disease for horses, caused by the parasite Trypanosoma evansi. Transmitted by insects in the savanna of the island of Sumba, the infection causes the death of the animal within a period ranging from one week to six months. Between 2010 and 2012, an epidemiological survey recorded 1,159 infected horses across the entire island.