Aquaculture biosecurity programs addressing aquatic animal pathogens and diseases have become an important focus for the aquaculture industry. Disease outbreaks have threatened profitable and viable aquaculture operations throughout the world. Information exchange between leading experts in different countries will increase success in combating infectious diseases. Key representatives of international, regional, and national organizations have presented their views of this important issue as part of a workshop at the World Aquaculture Society Triennial Conference 2004. The chapters of this book cover the wealth of experience from the varied perspectives of these experts on using biosecurity measures to take the offensive against the spread of diseases and parasites.