Prevalence and risk of cysticercosis and taeniasis in an urban population of soldiers and their relatives.

M L García-García Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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M Torres Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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D Correa Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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A Flisser Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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A Sosa-Lechuga Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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O Velasco Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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A Meza-Lucas Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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A Plancarte Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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G Avila Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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R Tapia Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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L Aguilar Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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A Mandujano Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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I Alcántara Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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Z Morales Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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A Salcedo Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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M D Mañon Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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J L Valdespino-Gomez Instituto Nacional de Salud Pública, Secretaria de Salud, Cuernavaca Morelos, Mexico.

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To determine markers of Taenia solium transmission and risk factors in an urban community, we studied 1,000 soldiers from a military camp in Mexico City and their relatives. Serum samples were used to detect antigens and antibodies and fecal specimens were examined for Taenia coproantigens and helminth eggs. Prevalences of 12.2% and 5.8% for cysticercosis were found among soldiers and their relatives, respectively. Taeniasis was found in 0.5% and none of the groups, respectively. Relatives of soldiers positive for cysticercosis and taeniasis markers ate more pork from street stores than restaurants or markets compared with relatives of soldiers without these indicators of infection. Also, 12.0% of the relatives of positive soldiers had a history of expelling tapeworm proglottids in the feces in contrast to 3.7% of the family members of the control group. Prevalence values and risk factors in this urban population are similar to those of previous studies performed in rural populations.

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