Example image of eyePlorer eyePlorer map for 'Koch's postulates': Disease Microorganism Friedrich Loeffler Robert Koch Anthrax Etiology Tuberculosis Cell culture Cholera Typhoid fever Pathogen Virology Molecular Koch's postulates Virulence Koch (surname) Human bocavirus 1843 in science Cancer bacteria Prion Pathogenic bacteria Gregory Cochran Barry Marshall Infectious disease Friedrich Gustav Jakob Henle Bacteria Epidemiological methods Koch Microbiology Clostridium difficile Germ theory of disease Leprosy Epstein–Barr virus infection Duesberg hypothesis Dog health Diseases of the honey bee Severe acute respiratory syndrome History of medicine Immune system