Clinical and serological evidence of Toxocara infection in school children from Morrope District, Lambayeque, Peru

  • Yrma A. Espinoza Universidad Nacional Mayor de San Marcos; Facultad de Medicina; Instituto de Medicina Tropical Daniel A. Carrión; Sección de Parasitología
  • Pedro H. Huapaya Universidad Nacional Mayor de San Marcos; Facultad de Medicina; Instituto de Medicina Tropical Daniel A. Carrión; Sección de Parasitología
  • William H. Roldán Universidad Nacional Mayor de San Marcos; Facultad de Medicina; Instituto de Medicina Tropical Daniel A. Carrión; Sección de Parasitología
  • Susana Jiménez Universidad Nacional Mayor de San Marcos; Facultad de Medicina; Instituto de Medicina Tropical Daniel A. Carrión; Sección de Parasitología
  • Zhandra Arce Centro de Salud Morrope; Red Lambayeque; DISA Chiclayo
  • Elmer Lopez DISA Chiclayo; Hospital Docente Las Mercedes
Keywords: Toxocariasis, Frequency, ELISA test, Children

Abstract

The aim of this study was to estimate the frequency of human toxocariosis in a child population from Morrope district, Lambayeque, Peru. From October to December 2005, 182 school children (96 male and 86 female) were studied. Blood samples were collected for Toxocara ELISA-IgG test and hematological examination. Additionally, stool samples were collected for coproparasitological examination to check cross reactions. We found frequency of positives in 32.4% (59/182) with a significant higher proportion of positivity in male children (p < 0.00001). 71.2% of the children with positive serology (52 male and seven female), were between five and 10 years old, 77.96% had respiratory symptoms, 61.02% had ocular manifestations, 38.98% had hepatic symptoms, 38.98% had mild or moderate eosinophilia, signs statistically associated with seropositivity. 83.5% of studied population had some intestinal parasite, such as: Blastocystis hominis (53.3%), Giardia lamblia (31.3%), Entamoeba coli (29.1%), Entamoeba histolytica/E. dispar (1.1%), Hymenolepis nana (5.49%), and Ascaris lumbricoides (3.3%), but they had not any association with serology results. The ownership of dogs or/and cats were significantly associated with seropositivity to anti-Toxocara antibodies although the presence of such pets within the house was not. In conclusion, clinical and serological evidence of Toxocara infection exists in the studied population.

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Published
2008-04-01
How to Cite
Espinoza, Y., Huapaya, P., Roldán, W., Jiménez, S., Arce, Z., & Lopez, E. (2008). Clinical and serological evidence of Toxocara infection in school children from Morrope District, Lambayeque, Peru . Revista Do Instituto De Medicina Tropical De São Paulo, 50(2), 101-105. Retrieved from http://www.revistas.usp.br/rimtsp/article/view/31160
Section
Parasitology