“…These nematodes have a world-wide distribution but are more prevalent in the tropics and subtropics [290]. Nonhuman primates reported to be affected include New World species (howler monkeys, woolly monkeys, and squirrel monkeys) [76,208,365,492,650,814], Old World species (rhesus monkeys, cynomolgus monkeys, Japanese macaques, Formosan macaques, African green monkeys, and baboons) [75,290,339,362,487,494,609,712,741,764,836,922], and great apes (gibbons and chimpanzees) [222,290,359,570,686,689,712,843,863,893]. These parasites are morphologically identical to and indistinguishable from T. trichiura in humans [290,570,650,742].…”