Distribution of Hydatidosis and Cysticercosis in Different Peruvian Populations as Demonstrated by an Enzyme-Linked Immunoelectrotransfer Blot (EITB) Assay

Pedro L. MoroLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Angela GuevaraLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Manuela VerasteguiLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Robert H. GilmanLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Hortencia PomaLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Beatriz TapiaLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Victor C. W. TsangLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Hector H. GarciaLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Rosa PachecoLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Cecilia LapelLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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Elba MirandaLaboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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The Cysticercosis Working Group in Peru (CWG)Laboratorio de Parasitologia, Universidad Peruana Cayetano Heredia, Department of International Health, Johns Hopkins University School of Public Health, Departamento de Farmacologia, Universidad Nacional Mayor de San Marcos, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Departamento de Microbiologia, Universidad San Antonio Abad del Cuzco, Lima, Peru

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A serosurvey for human hydatidosis and cysticercosis was performed in different regions of Peru. Those regions included a known endemic area for cystic hydatid disease, a cooperative in the central Peruvian Andes near the city of Tarma, Department of Junin; three areas endemic for cysticercosis in the Departments of Ancash, Cuzco, and San Martin, where the status of hydatid disease is not well defined; and an urban shantytown near Lima, where neither zoonosis is known to be present. A seroprevalence for hydatidosis 1.9% (6 of 309) was found with both the enzyme-linked immunoelectrotransfer blot (EITB) and double diffusion assays in the area endemic for hydatidosis. Seroprevalence in the other zones tested was zero using only the EITB assay. Cysticercosis seroprevalence was high in pig-raising zones but low in the high-altitude, sheep-raising areas and in the seaport of Callao. No cross-reactions between Echinococcus granulosus and cysticercosis were noted in any of the regions studied. Hydatid infection remains a major health problem in the central Peruvian Andes where sheep raising is widely practiced; however, in those regions where mainly swine are raised, human hydatid infection is not a problem.

Author Notes

The CWG members are H. H. Garcia, F. Diaz, J. Naranjo, C. Carcamo, T. Montenegro, P. Torres (Universidad Peruana Cayetano Heredia); J. Pilcher (Centers for Disease Control and Prevention, Atlanta, GA); C. Evans (Cambridge University, UK); A. E. Gonzales (Universidad Nacional Mayor de San Marcos); M. Martinez, J. Altamirano, M. Alvarado, E. Orrillo, S. Escalante, L. Palomino, G. Alban, N. Rios-Saavedra, J. M. Cuba, H. Estrada (Instituto Nacional de Ciencias Neurologicas); A. Terashima, J. Cabrera, P. Campos (Hospital Cayetano Heredia); U. Rocca (Hospital Guillermo Almenara); M. Lescano, L. E. Vasquez, L. Samaniego, J. Matsuoko (Instituto de Medicina Tropical de San Martin).

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