Artículos de revistas
Case-control study of an outbreak of acute toxoplasmosis in an industrial plant in the state of São Paulo, Brazil
Estudo caso-controle de surto de toxoplasmose aguda em indústria no estado de São Paulo, Brasil
Fecha
2012Registro en:
Rev. Inst. Med. trop. S. Paulo,v.54,n.5,p.239-244,2012
0036-4665
10.1590/S0036-46652012000500001
Autor
Ekman, Claudio Cesar Jaguaribe
Chiossi, Maria Fernanda do Valle
Ekman, Luciana Regina Meireles Jaguaribe
Junior, Heitor Franco de Andrade
Figueiredo, Walter Manso
Marciano, Maria Aparecida Moraes
Luna, Expedito José de Albuquerque
Institución
Resumen
Foodborne diseases represent operational risks in industrial restaurants. We described an outbreak of nine clustered cases of acute illness resembling acute toxoplasmosis in an industrial plant with 2300 employees. These patients and another 36 similar asymptomatic employees were diagnosed with anti-T. gondii IgG titer and avidity by ELISA. We excluded 14 patients based on high IgG avidity and chronic toxoplasmosis: 13 from controls and one from acute disease other than T. gondii infection. We also identified another three asymptomatic employees with T.gondii acute infection and also anti-T. gondii IgM positive as remaining acute cases. Case control study was conducted by interview in 11 acute infections and 20 negative controls. The ingestion of green vegetables, but not meat or water, was observed to be associated with the incidence of acute disease. These data reinforce the importance of sanitation control in industrial restaurants and also demonstrate the need for improvement in quality control regarding vegetables at risk for T. gondii oocyst contamination. We emphasized the accurate diagnosis of indexed cases and the detection of asymptomatic infections to determine the extent of the toxoplasmosis outbreak.