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Living FormsRelationships to Society and Main Groups
Ways by Which Organisms Produce Disease
Social Significance of Living Agents of Disease
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acid active adult agar agglutination anaerobic animals anthrax antibiotic antibody antigen areas arthropods bacillus bacteria blood body Brucella brucellosis carriers causal agent caused cells centigrade chemical cholera clinical Clostridium colonies commonly containing cultivated cultures death develop diagnosis diphtheria disease agents disinfection drugs dysentery effective eggs epidemic epidemic typhus ferment fleas fluid genus growth helminths Hemophilus host human immunity individual infection infectious agent infectious diseases influenza inoculated intestinal isolated known laboratory lesions malaria material medium micro-organisms micrococci microns microscope milk Neisseria occur parasite pathogenic pathogenic organisms patients penicillin persons plague pneumococci pneumonia poliomyelitis present produced protozoa Public Health Service reaction resistance responsible rickettsiae Salmonella seen serum skin sometimes species spirochetes spores sputum stained sterile streptococci substances sulfonamides susceptible symptoms syphilis tapeworm temperature therapy tion tissue toxin treatment tubercle tuberculosis tularemia typhoid fever typhus fever United usually vaccine vibrio virus viruses worm