TAENIASIS AND CYSTICERCOSIS IN HOUSEMAIDS WORKING IN AFFLUENT NEIGHBORHOODS IN LIMA, PERU

BRANKO N. HUISA School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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LUIS A. MENACHO School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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SILVIA RODRIGUEZ School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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JAVIER A. BUSTOS School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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ROBERT H. GILMAN School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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VICTOR C. W. TSANG School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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ARMANDO E. GONZALEZ School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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HECTOR H. GARCÍA School of Medicine (BAH, LAM) and Department of Microbiology, School of Sciences (RHG, HHG), Universidad Peruana Cayetano Heredia, Lima, Perú; Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru; Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; Immunology Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, Georgia; Department of Veterinary Public Health, School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru

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Taenia solium taeniasis/cysticercosis is endemic in most developing countries, where it is an important cause of epileptic seizures and other neurologic symptoms. In industrialized countries, cysticercosis results from travel or immigration of tapeworm carriers from endemic areas. In both endemic and nonendemic countries, housemaids commonly immigrate from cysticercosis-endemic areas and can transmit the infection if they carry the adult tapeworm. Between July 2001 and July 2002, 1,178 housemaids (961 of them work in the top five most affluent districts of Lima, a metropolis of 8 million inhabitants considered nonendemic for cysticercosis) were evaluated for serum antibodies to Taenia solium and stool microscopy for taeniasis and cysticercosis. The serosurvey revealed a prevalence of cysticercosis-specific antibodies of 14.6% (95% CI 12.6–16.6%), and stool microscopy detected 12 T. solium tapeworm carriers, for a prevalence of taeniasis of 1.2% (95% CI: 0.6–1.8%). A nonrandom sample of 26 seropositive housemaids was examined by brain CT and 50% of them had brain lesions compatible with neurocysticercosis, mainly calcifications. From the families who used a tapeworm-carrier housemaid, cysticercosis antibodies were detected in 6 (23%) of 26 persons who agreed to participate. One seropositive member of the employer families was symptomatic for seizures and had brain calcifications. The prevalence of tapeworm infections in this housemaid group is similar to levels in endemic areas, constituting a source of neurocysticercosis infection.

Author Notes

Reprint requests: Hector H. García, Cysticercosis Unit, Instituto de Ciencias Neurológicas, Jr. Ancash 1271, Barrios Altos, Lima 1, Perú, Telephone: (51-1) 328-7360, Fax: (51-1) 328-7382, E-mail: hgarcia@jhsph.edu.
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