Protozoan, Helminth and Arthropod Parasites of Humans, (New March 2000) 25 Human diseases 18 Protozoan, Helminth, Mollusc and Arthropod Parasites of Animals, (New March 2000) 14 Man 13 Prion, Viral, Bacterial and Fungal Pathogens of Humans, (New March 2000) 12 Disease control 9 Epidemiology 9 more ... Zoonoses 8 Immunology 7 Infectious diseases 7 Parasites 7 Public Health Pests, Vectors and Intermediate Hosts, (New March 2000) 7 Public health 7 Health Economics, (New March 2000) 6 Infections 6 Disease transmission 5 Human Immunology and Allergology, (New March 2000) 5 Molecular biology 5 Parasitoses 5 Pathogens, Parasites and Infectious Diseases (Wild Animals), (New March 2000) 5 Prion, Viral, Bacterial and Fungal Pathogens of Animals, (New March 2000) 5 Protozoal infections 5 Taxonomy and Evolution 5 Techniques and Methodology 5 Communicable diseases 4 Disease prevention 4 Disease vectors 4 Host parasite relationships 4 Natural enemies 4 Nutrition 4 less ...