Protozoan, Helminth, Mollusc and Arthropod Parasites of Animals, (New March 2000) 19 Protozoan, Helminth and Arthropod Parasites of Humans, (New March 2000) 16 Helminths 10 Human diseases 10 Man 10 Prion, Viral, Bacterial and Fungal Pathogens of Animals, (New March 2000) 7 Disease control 6 Immunology 6 Non-communicable Diseases and Injuries of Animals 6 Parasites 6 Diagnosis 5 Epidemiology 5 Fishes 5 Infectious diseases 5 Laws and Regulations 5 Plant Pests, (New March 2000) 5 Public Health Pests, Vectors and Intermediate Hosts, (New March 2000) 5 Host Resistance and Immunity 4 Immune system 4 Immunity 4 Legislation 4 Natural enemies 4 Nematoda 4 Pathogens 4 Pathogens, Parasites and Infectious Diseases (Wild Animals), (New March 2000) 4 Prion, Viral, Bacterial and Fungal Pathogens of Humans, (New March 2000) 4 Taxonomy and Evolution 4 Techniques and Methodology 4 Zoonoses 4 Aetiology 3