Protozoan, Helminth, Mollusc and Arthropod Parasites of Animals, (New March 2000) 19 Protozoan, Helminth and Arthropod Parasites of Humans, (New March 2000) 16 Human diseases 10 Man 9 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 Protozoan diseases 6 Diagnosis 5 Epidemiology 5 Infectious diseases 5 Laws and Regulations 5 Parasites 5 Plant Pests, (New March 2000) 5 Public Health Pests, Vectors and Intermediate Hosts, (New March 2000) 5 Bacterial diseases 4 Host Resistance and Immunity 4 Immune system 4 Immunity 4 Legislation 4 Natural enemies 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 Viral diseases 4 Zoonoses 4 Aetiology 3