Document Type: Research Article
Affiliations: 1: Istituto Zooprofilattico Sperimentale dell' Abruzzo e del Molise, Teramo, Italy. 2: New Zealand Food Safety Authority, Wellington, New Zealand. 3: USDA—Animal and Plant Health Inspection Service—Centers for Epidemiology & Animal Health—Center for Animal Disease Information and Analysis, Fort Collins, CO, USA.
Publication date: December 1, 2004