A Case of Severe Anemia by Necator americanus Infection in Korea

This report describes clinical and parasitological findings of an 82-yr-old female patient who lived in a local rural village and suffered from severe chronic anemia for several years. She was transferred to the National Police Hospital in Seoul for management of severe dyspnea and dizziness. At admission, she showed symptoms or signs of severe anemia. Gastroduodenoscopy observed hyperemic mucosa of the duodenum and discovered numerous moving roundworms on the mucosa. Endoscopy isolated seven of them, which were identified as Necator americanus by characteristic morphology of cutting plates in the buccal cavity. The patient was treated with albendazole and supportive measures for anemia, and her physical condition much improved. This case suggests the possibility that hookworm N. americanus is still transmitted in a remote local mountainous area in Korea.

Parámetros hematológicos en niños portadores de uncinarias en una población de la provincia de Corrientes / Hematologic parameters in hookworm infested children of a Corrientes province population

Se investigó la prevalencia de enteroparasitosis en 207 escolares de ambos sexos de la población rural de San Cayetano, Corrientes y en los parasitados con uncinaria se evaluó hemoglobina, valores de hierro sérico, capacidad total de fijación de hierro del plasma y saturación de transferrina. Se halló que 171 niños (82 por ciento de la población estudiada) eran portadores de un parásito o más, de los cuales 46 niños (28 varones y 18 mujeres) presentaron examen coproparasitológico positivo para uncinaria. De los 46 niños parasitados con uncinaria, el 67,4 por ciento fueron portadores de Necator americano; 23,91 por ciento de Necator americano + Ancylostoma duodenale; y 8,69 por ciento sólo de Ancylostoma duodenale. Una alta proporción de varones (78,57 por ciento) y de niñas (83,33 por ciento) presentaron anemia; definida con valores de hemoglobina inferiores al percentilo 3 de las tablas de Dallman y Siimes, aunque sólo el 7,14 por ciento de varones y el 11,11 por ciento de niñas presentaron valores de hemoglobina menores de 9 g por ciento. Un 21,42 por ciento de los varones y 33,33 por ciento de las niñas presentaron valores de hierro sérico menores de 35 µg/dl y 28,57 por ciento de varones y 27,77 por ciento de niñas presentaron saturación de transferrina menor de 13 por ciento. Los resultados hallados hacen necesaria la implementación de estrategias destinadas tanto a la disminución como a la prevención de la parasitosis y de la anemia en los niños de esta población rural

Identification of necator americanus from a community in Bo; Southern Province; Sierra Leone

Fifty clinically anaemic children aged 6-9 years old were selected in the Bo; Southern Province; Sierra Leone during April 1990. All had their stools examined for stages of intestinal helminth infections. Twenty-one were judged to be positive for hookworm on the detection of eggs in stools. After treatment with lavemisole; 48 hour stool collections were performed on 15 of the heavily infected children. Adult hookworms were isolated from the specimens of 7 individuals; and preserved in 10 per cent aqueous formalin solution. the worms were later examined microscopically and shown to possess ventral cutting plates; fused and bared spicules; and a bifid nature of the tips of the dorsal rays of the male bursa; confirming their identification as necator americanus