[Serological survey of Toxoplasma gondii infection among public health practitioners in Xuhui District of Shanghai].

448 public health practitioners in the district were selected randomly from Dec. 2010 to Mar. 2011. Blood specimens were collected and tested for anti-T. gondii IgG by ELISA. The result showed that the positive rate was 10.3% (46/448). No significant difference was found between males and females, so as different cities of origin (P > 0.05). The positive rate was higher in > or = 30 age group (14.9%, 29/195) than that in < 30 age group (6.7%, 17/253)(P < 0.05), and the highest sero-prevalence was recorded in 30-39 age group (15.8%, 16/101). The positive rate was higher in subjects engaged in the food production and processing enterprises (12.6%, 36/286) than those in other industries (6.2%, 10/162) (P < 0.05).