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Medicina (B.Aires) ; 76(1): 25-29, feb. 2016. mapas, tab
Article in Spanish | LILACS | ID: biblio-841534

ABSTRACT

La dermatitis cercarial es una enfermedad cutánea, zoonótica y estival, causada por una larva nadadora de trematodes de la familia Schistosomatidae, llamada cercaria. Esta larva penetra accidentalmente la piel de personas que se encuentran en el agua, generando una reacción alérgica que generalmente no se informa en centros de salud, dificultando el registro de su incidencia. Se han informado casos en todo el mundo, incluyendo a la Argentina, aunque los estudios epidemiológicos se han realizado solamente en el Hemisferio Norte. En este trabajo se estudió la epidemiología de la dermatitis cercarial en tres balnearios patagónicos de los lagos Pellegrini, Mari Menuco y Puelo, donde se realizaron encuestas a visitantes durante los veranos de 2012-2013 y 2013-2014. Se analizaron los factores de riesgo, que fueron agrupados en “características personales”, “uso del recurso” y “medidas de prevención”. En el lago Pellegrini fue la sensibilización de la persona incluida en "características personales" el único factor determinante para la ocurrencia de esta zoonosis, mientras que en el lago Mari Menuco la ocurrencia se asoció con el tiempo y la distancia a la costa y el uso de cremas. En el lago Puelo no se registraron casos durante el período de estudio.


The cercarial dermatitis is a zoonotic, summer, skin-disease, caused by a swimming larva (cercaria) of a schistosomatid trematode. This larva accidentally penetrates the skin of people in the water, causing an allergic reaction, which is not always reported in health centers, so it is difficult to determine its incidence. Cases have been registered worldwide, including Argentina, although the epidemiological studies were performed only in the Northern Hemisphere. In this survey the epidemiology of cercarial dermatitis was studied in three Patagonian lakes watering places, Pellegrini, Mari Menuco, and Puelo, where surveys were conducted during summers of 2012-2013 and 2013-2014. The risk factors were analyzed and grouped in “personal characteristics”, “use of the recreational resource”, and “prevention measures”. At the Pellegrini Lake, the people´s sensitivity included in "personal characteristics" was the only determining factor for the occurrence of this zoonosis, mean while in Mari Menuco Lake, the bathing time and distance from the coast, and the use of lotions would affect the occurrence of swimmer’s itch. In Puelo Lake, no cases were recorded during the study period.


Subject(s)
Humans , Animals , Male , Female , Adolescent , Adult , Young Adult , Schistosomatidae/classification , Skin Diseases, Parasitic/epidemiology , Trematode Infections/epidemiology , Argentina/epidemiology , Skin Diseases, Parasitic/parasitology , Swimming , Trematode Infections/parasitology , Incidence , Risk Factors , Geography, Medical
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