| Acinetobacter baumannii | Acinetobacter infections |
| Actinomyces israelii, Actinomyces gerencseriae and Propionibacterium propionicus | Actinomycosis |
| Trypanosoma brucei | African sleeping sickness (African trypanosomiasis) |
| HIV (Human immunodeficiency virus) | AIDS (acquired immunodeficiency syndrome) |
| Entamoeba histolytica | Amoebiasis |
| Anaplasma species | Anaplasmosis |
| Angiostrongylus | Angiostrongyliasis |
| Anisakis | Anisakiasis |
| Bacillus anthracis | Anthrax |
| Arcanobacterium haemolyticum | Arcanobacterium haemolyticum infection |
| Junin virus | Argentine hemorrhagic fever |
| Ascaris lumbricoides | Ascariasis |
| Aspergillus species | Aspergillosis |
| Astroviridae species | Astrovirus infection |
| Babesia species | Babesiosis |
| Bacillus cereus | Bacillus cereus infection |
| multiple bacteria | Bacterial meningitis |
| multiple bacteria | Bacterial pneumonia |
| List of bacterial vaginosis microbiota | Bacterial vaginosis |
| Bacteroides species | Bacteroides infection |
| Balantidium coli | Balantidiasis |
| Bartonella | Bartonellosis |
| Baylisascaris species | Baylisascaris infection |
| BK virus | BK virus infection |
| Piedraia hortae | Black piedra |
| Blastocystis species | Blastocystosis |
| Blastomyces dermatitidis | Blastomycosis |
| Machupo virus | Bolivian hemorrhagic fever |
| Clostridium botulinum; Note: Botulism is not an infection by Clostridium botulinum but caused by the intake of botulinum toxin. | Botulism (and Infant botulism) |
| Sabiá virus | Brazilian hemorrhagic fever |
| Brucella species | Brucellosis |
| Yersinia pestis | Bubonic plague |
| usually Burkholderia cepacia and other Burkholderia species | Burkholderia infection |
| Mycobacterium ulcerans | Buruli ulcer |
| Caliciviridae species | Calicivirus infection (Norovirus and Sapovirus) |
| Campylobacter species | Campylobacteriosis |
| usually Candida albicans and other Candida species | Candidiasis (Moniliasis; Thrush) |
| Intestinal disease by Capillaria philippinensis, hepatic disease by Capillaria hepatica and pulmonary disease by Capillaria aerophila | Capillariasis |
| Bartonella bacilliformis | Carrion's disease |
| Bartonella henselae | Cat-scratch disease |
| usually Group A Streptococcus and Staphylococcus | Cellulitis |
| Trypanosoma cruzi | Chagas disease (American trypanosomiasis) |
| Haemophilus ducreyi | Chancroid |
| Varicella zoster virus (VZV) | Chickenpox |
| Alphavirus | Chikungunya |
| Chlamydia trachomatis | Chlamydia |
| Chlamydophila pneumoniae | Chlamydophila pneumoniae infection (Taiwan acute respiratory agent or TWAR) |
| Vibrio cholerae | Cholera |
| usually Fonsecaea pedrosoi | Chromoblastomycosis |
| Batrachochytrium dendrabatidis | Chytridiomycosis |
| Clonorchis sinensis | Clonorchiasis |
| Clostridium difficile | Clostridium difficile colitis |
| Coccidioides immitis and Coccidioides posadasii | Coccidioidomycosis |
| Colorado tick fever virus (CTFV) | Colorado tick fever (CTF) |
| usually rhinoviruses and coronaviruses | Common cold (Acute viral rhinopharyngitis; Acute coryza) |
| Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) | Coronavirus disease 2019 (COVID-19) |
| PRNP | Creutzfeldt–Jakob disease (CJD) |
| Crimean-Congo hemorrhagic fever virus | Crimean-Congo hemorrhagic fever (CCHF) |
| Cryptococcus neoformans | Cryptococcosis |
| Cryptosporidium species | Cryptosporidiosis |
| usually Ancylostoma braziliense; multiple other parasites | Cutaneous larva migrans (CLM) |
| Cyclospora cayetanensis | Cyclosporiasis |
| Taenia solium | Cysticercosis |
| Cytomegalovirus | Cytomegalovirus infection |
| Dengue viruses (DEN-1, DEN-2, DEN-3 and DEN-4) – Flaviviruses | Dengue fever |
| Green algae Desmodesmus armatus | Desmodesmus infection |
| Dientamoeba fragilis | Dientamoebiasis |
| Corynebacterium diphtheriae | Diphtheria |
| Diphyllobothrium | Diphyllobothriasis |
| Dracunculus medinensis | Dracunculiasis |
| Ebolavirus (EBOV) | Ebola hemorrhagic fever |
| Echinococcus species | Echinococcosis |
| Ehrlichia species | Ehrlichiosis |
| Enterobius vermicularis | Enterobiasis (Pinworm infection) |
| Enterococcus species | Enterococcus infection |
| Enterovirus species | Enterovirus infection |
| Rickettsia prowazekii | Epidemic typhus |
| Parvovirus B19 | Erythema infectiosum (Fifth disease) |
| Human herpesvirus 6 (HHV-6) and human herpesvirus 7 (HHV-7) | Exanthem subitum (Sixth disease) |
| Fasciola hepatica and Fasciola gigantica | Fasciolasis |
| Fasciolopsis buski | Fasciolopsiasis |
| PRNP | Fatal familial insomnia (FFI) |
| Filarioidea superfamily | Filariasis |
| Clostridium perfringens | Food poisoning by Clostridium perfringens |
| multiple | Free-living amebic infection |
| Fusobacterium species | Fusobacterium infection |
| usually Clostridium perfringens; other Clostridium species | Gas gangrene (Clostridial myonecrosis) |
| Geotrichum candidum | Geotrichosis |
| PRNP | Gerstmann-Sträussler-Scheinker syndrome (GSS) |
| Giardia lamblia | Giardiasis |
| Burkholderia mallei | Glanders |
| Gnathostoma spinigerum and Gnathostoma hispidum | Gnathostomiasis |
| Neisseria gonorrhoeae | Gonorrhea |
| Klebsiella granulomatis | Granuloma inguinale (Donovanosis) |
| Streptococcus pyogenes | Group A streptococcal infection |
| Streptococcus agalactiae | Group B streptococcal infection |
| Haemophilus influenzae | Haemophilus influenzae infection |
| Enteroviruses, mainly Coxsackie A virus and enterovirus 71 (EV71) | Hand, foot and mouth disease (HFMD) |
| Sin Nombre virus | Hantavirus Pulmonary Syndrome (HPS) |
| Heartland virus | Heartland virus disease |
| Helicobacter pylori | Helicobacter pylori infection |
| Escherichia coli O157:H7, O111 and O104:H4 | Hemolytic-uremic syndrome (HUS) |
| Bunyaviridae species | Hemorrhagic fever with renal syndrome (HFRS) |
| Hendra virus | Hendra virus infection |
| Hepatitis A virus | Hepatitis A |
| Hepatitis B virus | Hepatitis B |
| Hepatitis C virus | Hepatitis C |
| Hepatitis D Virus | Hepatitis D |
| Hepatitis E virus | Hepatitis E |
| Herpes simplex virus 1 and 2 (HSV-1 and HSV-2) | Herpes simplex |
| Histoplasma capsulatum | Histoplasmosis |
| Ancylostoma duodenale and Necator americanus | Hookworm infection |
| Human bocavirus (HBoV) | Human bocavirus infection |
| Ehrlichia ewingii | Human ewingii ehrlichiosis |
| Anaplasma phagocytophilum | Human granulocytic anaplasmosis (HGA) |
| Human metapneumovirus (hMPV) | Human metapneumovirus infection |
| Ehrlichia chaffeensis | Human monocytic ehrlichiosis |
| One of the human papillomaviruses | Human papillomavirus (HPV) infection |
| Human parainfluenza viruses (HPIV) | Human parainfluenza virus infection |
| Hymenolepis nana and Hymenolepis diminuta | Hymenolepiasis |
| Epstein–Barr virus (EBV) | Epstein–Barr virus infectious mononucleosis (Mono) |
| Orthomyxoviridae species | Influenza (flu) |
| Isospora belli | Isosporiasis |
| unknown; evidence supports that it is infectious | Kawasaki disease |
| multiple | Keratitis |
| Kingella kingae | Kingella kingae infection |
| PRNP | Kuru |
| Lassa virus | Lassa fever |
| Legionella pneumophila | Legionellosis (Legionnaires' disease) |
| Legionella pneumophila | Pontiac fever |
| Leishmania species | Leishmaniasis |
| Mycobacterium leprae and Mycobacterium lepromatosis | Leprosy |
| Leptospira species | Leptospirosis |
| Listeria monocytogenes | Listeriosis |
| Borrelia burgdorferi, Borrelia garinii, and Borrelia afzelii | Lyme disease (Lyme borreliosis) |
| Wuchereria bancrofti and Brugia malayi | Lymphatic filariasis (Elephantiasis) |
| Lymphocytic choriomeningitis virus (LCMV) | Lymphocytic choriomeningitis |
| Plasmodium species | Malaria |
| Marburg virus | Marburg hemorrhagic fever (MHF) |
| Measles virus | Measles |
| Middle East respiratory syndrome coronavirus | Middle East respiratory syndrome (MERS) |
| Burkholderia pseudomallei | Melioidosis (Whitmore's disease) |
| multiple | Meningitis |
| Neisseria meningitidis | Meningococcal disease |
| usually Metagonimus yokagawai | Metagonimiasis |
| Microsporidia phylum | Microsporidiosis |
| Molluscum contagiosum virus (MCV) | Molluscum contagiosum (MC) |
| Monkeypox virus | Monkeypox |
| Mumps virus | Mumps |
| Rickettsia typhi | Murine typhus (Endemic typhus) |
| Mycoplasma pneumoniae | Mycoplasma pneumonia |
| Mycoplasma genitalium | Mycoplasma genitalium infection |
| numerous species of bacteria (Actinomycetoma) and fungi (Eumycetoma) | Mycetoma |
| parasitic dipterous fly larvae | Myiasis |
| most commonly Chlamydia trachomatis and Neisseria gonorrhoeae | Neonatal conjunctivitis (Ophthalmia neonatorum) |
| Nipah virus | Nipah virus infection |
| Norovirus | Norovirus (children and babies) | |
| PRNP | (New) Variant Creutzfeldt–Jakob disease (vCJD, nvCJD) | |
| usually Nocardia asteroides and other Nocardia species | Nocardiosis |
| Onchocerca volvulus | Onchocerciasis (River blindness) |
| Opisthorchis viverrini and Opisthorchis felineus | Opisthorchiasis |
| Paracoccidioides brasiliensis | Paracoccidioidomycosis (South American blastomycosis) |
| usually Paragonimus westermani and other Paragonimus species | Paragonimiasis |
| Pasteurella species | Pasteurellosis |
| Pediculus humanus capitis | Pediculosis capitis (Head lice) |
| Pediculus humanus corporis | Pediculosis corporis (Body lice) |
| Pthirus pubis | Pediculosis pubis (pubic lice, crab lice) |
| multiple | Pelvic inflammatory disease (PID) |
| Bordetella pertussis | Pertussis (whooping cough) |
| Yersinia pestis | Plague |
| Streptococcus pneumoniae | Pneumococcal infection |
| Pneumocystis jirovecii | Pneumocystis pneumonia (PCP) |
| multiple | Pneumonia |
| Poliovirus | Poliomyelitis |
| Prevotella species | Prevotella infection |
| usually Naegleria fowleri | Primary amoebic meningoencephalitis (PAM) |
| JC virus | Progressive multifocal leukoencephalopathy |
| Chlamydophila psittaci | Psittacosis |
| Coxiella burnetii | Q fever |
| Rabies virus | Rabies |
| Borrelia hermsii, Borrelia recurrentis, and other Borrelia species | Relapsing fever |
| Respiratory syncytial virus (RSV) | Respiratory syncytial virus infection |
| Rhinosporidium seeberi | Rhinosporidiosis |
| Rhinovirus | Rhinovirus infection |
| Rickettsia species | Rickettsial infection |
| Rickettsia akari | Rickettsialpox |
| Rift Valley fever virus | Rift Valley fever (RVF) |
| Rickettsia rickettsii | Rocky Mountain spotted fever (RMSF) |
| Rotavirus | Rotavirus infection |
| Rubella virus | Rubella |
| Salmonella species | Salmonellosis |
| SARS coronavirus | SARS (severe acute respiratory syndrome) |
| Sarcoptes scabiei | Scabies |
| Group A Streptococcus species | Scarlet fever |
| Schistosoma species | Schistosomiasis |
| multiple | Sepsis |
| Shigella species | Shigellosis (bacillary dysentery) |
| Varicella zoster virus (VZV) | Shingles (Herpes zoster) |
| Variola major or Variola minor | Smallpox (variola) |
| Sporothrix schenckii | Sporotrichosis |
| Staphylococcus species | Staphylococcal food poisoning |
| Staphylococcus species | Staphylococcal infection |
| Strongyloides stercoralis | Strongyloidiasis |
| Measles virus | Subacute sclerosing panencephalitis |
| Treponema pallidum | Bejel, Syphilis, and Yaws |
| Taenia species | Taeniasis |
| Clostridium tetani | Tetanus (lockjaw) |
| usually Trichophyton species | Tinea barbae (barber's itch) |
| usually Trichophyton tonsurans | Tinea capitis (ringworm of the scalp) |
| usually Trichophyton species | Tinea corporis (ringworm of the body) |
| usually Epidermophyton floccosum, Trichophyton rubrum, and Trichophyton mentagrophytes | Tinea cruris (Jock itch) |
| Trichophyton rubrum | Tinea manum (ringworm of the hand) |
| usually Hortaea werneckii | Tinea nigra |
| usually Trichophyton species | Tinea pedis (athlete’s foot) |
| usually Trichophyton species | Tinea unguium (onychomycosis) |
| Malassezia species | Tinea versicolor (Pityriasis versicolor) |
| Toxocara canis or Toxocara cati | Toxocariasis (ocular larva migrans (OLM)) |
| Toxocara canis or Toxocara cati | Toxocariasis (visceral larva migrans (VLM)) |
| Toxoplasma gondii | Toxoplasmosis |
| Chlamydia trachomatis | Trachoma |
| Trichinella spiralis | Trichinosis |
| Trichomonas vaginalis | Trichomoniasis |
| Trichuris trichiura | Trichuriasis (whipworm infection) |
| usually Mycobacterium tuberculosis | Tuberculosis |
| Francisella tularensis | Tularemia |
| Salmonella enterica subsp. enterica, serovar typhi | Typhoid fever |
| Rickettsia | Typhus fever |
| Ureaplasma urealyticum | Ureaplasma urealyticum infection |
| Coccidioides immitis or Coccidioides posadasii.[1] | Valley fever |
| Venezuelan equine encephalitis virus | Venezuelan equine encephalitis |
| Guanarito virus | Venezuelan hemorrhagic fever |
| Vibrio vulnificus | Vibrio vulnificus infection |
| Vibrio parahaemolyticus | Vibrio parahaemolyticus enteritis |
| multiple viruses | Viral pneumonia |
| West Nile virus | West Nile fever |
| Trichosporon beigelii | White piedra (tinea blanca) |
| Yersinia pseudotuberculosis | Yersinia pseudotuberculosis infection |
| Yersinia enterocolitica | Yersiniosis |
| Yellow fever virus | Yellow fever |
| Zeaspora fungus | Zeaspora |
| Zika virus | Zika fever |
| Mucorales order (Mucormycosis) and Entomophthorales order (Entomophthoramycosis) | Zygomycosis |
