Many samples (serum, muscle extracts, lung extracts) from more than 500 wild boars were tested for the presence of Aujeszky's disease antibodies, using three ELISA gE commercial kits. This gave the opportunity to evaluate the sensitivity and specificity obtained with tissue extracts, as compared to serum (conventional tests). The results obtained allow to envisage the use of muscle or lung samples for the epidemiosurveillance of Aujeszky's disease in wild boars.