Parasitic Nematodes are amongst the most successful parasites on Earth. This fully-updated second edition constitutes a comprehensive volume that continues to discuss the molecular biology, biochemistry and immunology of nematode parasites of humans, domestic animals and plants. There is a strong focus on new advances including chapters on horizontal gene transfer, genetics of susceptibility in humans, nematode protein structures, role of bacterial symbionts, host immune system modulation, modulation of allergic and autoimmune diseases by parasitic nematodes and the use of these organisms or their products as therapeutics. This book will be of significant importance to advanced students and researchers in human and veterinary parasitology, plant nematology and pathogen immunology in general.