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Tungiasis in the urban area of Popayán, Colombia: A case report

Tungiasis is an endemic ectoparasitosis in Latin America associated with risk factors such as rurality, poverty, and living with animals. In Popayán, a city in southwest Colombia, the disease was highly prevalent in the past, to such degree that its inhabitants were given the nickname of patojo, a word that describes the way of walking of people infested by the flea. However, it was believed eradicated at present.
We present the case of a 12-year-old boy living in the urban area of Popayán, who presented with a one-month history of papular lesions with circular edges, blackish center, and hyperkeratotic halo on both feet. Tungiasis was suspected based on the clinical findings and ivermectin was administered. The lesions were surgically removed and sent for parasitological analysis, which confirmed the presence of Tunga penetrans. The patient evolved satisfactorily. The Secretaría de Salud Municipal de Popayán carried out an inspection of the patient’s home where migrant dogs from the Colombian Pacific were found in the surroundings, some with suspicious lesions of tungiasis.
We document here the resurgence of this pathology in urban areas, probably secondary to the migration of animals from rural areas. It is important to recognize the existence of the flea in rural and urban areas, make a medical diagnosis, and report cases to the surveillance entities to enable appropriate management and sanitary control of this neglected ectoparasitosis in humans and animals.