Sections
I: PRIONS
II: VIRUSES
III: BACTERIA
IV: FUNGI
V: PARASITES
VI: HELMINTHS

PRIONS

Creutzfeldt-Jakob agent Neurodegenerative diseases

VIRUSES

DNA Viruses

Adenoviridae Adenovirus ARI, diarrhea, ocular diseases, cystitis
Hepadnaviridae Hepatitis B virus Hepatitis (chronic); liver cancer
Herpesviridae Herpes simplex viruses 1 and 2 Vesicular lesions on skin and mucous membranes, encephalitis, (hepatitis)
Varicella-zoster virus Varicella; zoster
Cytomegalovirus Mononucleosis; congenital disease
Human herpesviruses 6, 7, 8 Febrile seizures, exanthema subitum, encephalitis in ICH
Epstein-Barr virus Infectious mononucleosis
Papillomaviridae Human papillomaviruses Benign (papillomas, warts) and malignant tumours of skin and mucous membranes
Parvoviridae Human parvovirus B19 Erythema infectiosum, hydrops foetalis, aplastic anemia
Polyomaviridae BK virus, JC virus, SV40 CNS-infections in ICH
Poxviridae Vaccinia virus Smallpox
Monkeypox virus Monkeypox
Cowpox virus Cowpox
Molluscum contagiosum virus Warts

RNA Viruses

Arenaviridae Lassa fever virus Lassa fever, lymphocytic choriomeningitis, hemorrhagic fevers
Astroviridae Astrovirus Gastroenteritis
Caliciviridae Norwalk viruses Gastroenteritis
Coronaviridae Human epidemic coronaviruses (OC43; 229E;) ARI
SARS-CoV Severe acute respiratory syndrome
MERS CoV Middle East respiratory syndrome
SARS-CoV2 ARI; MSID, long COVID
Filoviridae Ebolavirus Haemorrhagic fever
Flaviviridae Flavivirus Haemorrhagic fever; CNS diseases
Mosquito-borne Japanese Encephalitis virus Encephalitis, meningitis, meningoencephalitis
Yellow fever virus Fever, headache, severe hepatitis, coagulopathy, muscle pain
Dengue viruses High fever, pain behind eyes, rash
West Nile virus, Kunjin virus Encephalitis, meningitis, meningoencephalitis
Murray-Valley-Encephalitis virus Encephalitis, meningitis, meningoencephalitis
Saint Luis-Encephalitis virus Encephalitis, meningitis, meningoencephalitis
Zika virus Zika fever; congenital malformations, GBS
Tick-borne Tick-borne encephalitis viruses Tick-borne encephalitis
Omsk Hemorrhagic fever virus Hemorrgagic fever
Langat virus Rare: CNS-disease
Kyasanur Forest-Disease virus Hemorrhagic fever, heart failure
Powassan virus Encephalitis, meningitis
Others Hepatitis C virus Chronic hepatitis, liver cirrhosis, liver cancer
Orthomyxoviridae Influenzavirus A,B,C Influenza (ARI)
Respirovirus Parainfluenza viruses ARI
Rubulavirus Mumps virus Mumps, orchitis, meningitis, encephalitis
Parainfluenza viruses ARI
Morbillivirus Measles virus Severe systemic infection with rash (encephalitis, pneumonia, otitis media)
Pneumonvirus Respiratory syncytial virus ARI, LRT, (bronchiolitis in infants)
Metapneumovirus Human metapneumoviruses ARI
Picornaviridae
Enterovirus Polioviruses Flaccid paralysis
Coxsackie A and B viruses ARI, CNS-diseases, pericarditis, endocarditis
Echoviruses ARI, CNS diseases, myocarditis, exanthemas
Enteroviruses HFMD (A 71) CNS diseases, myocarditis
Hepatovirus Hepatitis A virus Acute hepatitis
Rhinovirus Common cold viruses Common Cold
Reoviridae Colorado tick fever virus Biphasic fever, severe weakness
Human rotaviruses Severe diarrhea (infants and young children)
Retroviridae Human T-lymphotropic viruses 1 and 2 (HTLV 1 and 2) T-cell leukemia/lymphoma
Human immunodeficiency viruses 1 and 2 (HIV 1 and 2) AIDS
Rhabdoviridae Rabies virus 100% fatal encephalitis
Vesicular stomatitis virus Acute influenza-like illness
Togaviridae Group A arboviruses, Rapid onset, high fever, tremors, seizures, paralysis, coma, death.
Equine encephalitis viruses Encephalitis, meningitis, meningoencephalitis
Rubivirus Rubella virus Rubella

Unclassified Human Viruses

Hepatitis D virus Co-infection with hepatitis B virus
Hepatitis E virus Hepatitis

BACTERIA

Aerobic and Facultative Bacteria
GRAM-POSITIVE COCCI
Catalase-Positive Staphylococcus aureus Impetigo, cellulitis, folliculitis, abscess, nosocomial infections: septicemia, pneumonia, meningitis
Staphylococcus epidermidis Nosocomial infections, meningitis
Catalase-Negative Enterococcus faecalis Urinary tract infections, endocarditis, bacteremia, and wound infections
Enterococcus faecium Urinary tract infections, endocarditis, bacteremia, and wound infections
Streptococcus agalactiae (Group B) Wound infection, meningitis, septicemia
Streptococcus pneumoniae Pneumonia, otitis media, bacteremia, osteomyelitis, septic arthritis, meningitis
Streptococcus pyogenes (Group A) Pharyngitis, scarlet fever, impetigo, necrotizing fasciitis, cellulitis, toxic shock syndrome
Viridans group streptococci Septicemia, pneumonia in ICH and neonates
GRAM-NEGATIVE COCCI
Moraxella catarrhalis Otitis media, COPD exacerbations, rhinosinusitis
Neisseria gonorrhoeae STD with urethritis, arthritis, others
Neisseria meningitidis Meningitis, septicemia, pneumonia, septic arthritis, pericarditis, urethritis
GRAM-POSITIVE BACILLI
Bacillus anthracis Painless ulcers with black center following small blisters or bumps
Corynebacterium diphtheriae ARI, pharyngitis, toxin induced myocarditis, nephritis, others
Listeria monocytogenes Hepatitis, enpcehalitis, others
Mycobacterium avium Lung disease in ICH
Mycobacterium leprae Chronic infections of nerves, skin, eyes, nasal mucosa
Mycobacterium tuberculosis Lung infection, spread to any other organ
GRAM-NEGATIVE BACILLI
Enterobacteriaceae Citrobacter species Nosocomial infections
Enterobacter aerogenes Nosocomial infections: UTIs, skin / soft tissue, respiratory, endocarditis and more
Escherichia coli UTI, septicemia in neonates, nosocomial infections
Klebsiella oxytoca Nosocomial infections
Proteus mirabilis Nosocomial infections
Salmonella Choleraesuis Diarrhea, septicemic disease
Salmonella Pararyphi A Enteric fever
Salmonella Pararyphi B Enteric fever
Salmonella Typhi Enteric fever
Shigella dysenteriae Diarrhea
Yersinia enterocolitica Bloody diarrhea
Yersinia pestis Lymphadenitis, septicemia, pneumonia
Nonenterobacteriaceae - Fermentative Bacilli
Vibrio cholerae Diarrhea
Nonenterobacteriaceae - Nonfermentative Bacilli
Burkholderia cepacia Pneumonia in CF and ICH
Pseudomonas aeruginosa Nosocomial infections, pneumonia in ICH, dermatitis, soft tissue infections, bacteremia, bone and joint infections
Stenotrophomonas maltophilia Nosocomial infections, pneumonia in ICH
OTHER GRAM-NEGATIVE
Bartonella bacilliformis Lymphadenitis
Brucella species Recurrent fevers, arthritis
Bordetella pertussis Whooping cough
Campylobacter fetus Septicemia, arthritis, endocarditis, abortion
Campylobacter jejuni Campylobacteriosis (diarrhea, fever, stomach cramps)
Chlamydia pneumoniae ARI, pneumonia
Chlamydia psittaci ARI, pneumonia
Chlamydia trachomatis Pelvic inflammatory disease, genital infection, pneumonia in infants
Haemophilus influenzae Meningitis, septicemia, epiglottitis
Helicobacter pylori Peptic ulcer disease, gastritis, stomach cancer
Legionella pneumophila ARI, pneumonia
Rickettsia rickettsii Rash
Streptobacillus moniliformis Rash on hands and feet
MYCOPLASMAS
Mycoplasma pneumoniae Tracheobronchitis, cold agglutinin-positive pneumonia
TREPONEMATACEAE (SPIRAL ORGANISMS)
Borrelia burgdorferi Lyme disease (skin, joints, CNS, heart)
Treponema pallidum Chronic STD, can affect any organ
Anaerobic Bacteria
GRAM-NEGATIVE BACILLI
Bacteroides fragilis group Nosocomial infections, bacteremia, intra-abdominal infections, peritonitis
Fusobacterium species Tonsillitis, peritonsillar abscess, thrombophlebitis of the jugular vein (Lemierre syndrome)
GRAM-NEGATIVE COCCI
Veillonella parvula Rare: meningitis, osteomyelitis, bacteremia, others
NON-SPORE-FORMING GRAM-POSITIVE BACILLI
Actinomyces israelii Draining lesions in various organs (lung, gums, gut, ...)
SPORE-FORMING GRAM-POSITIVE BACILLI
Clostridium botulinum Toxin-mediated food poisoning (adult / infant forms)
Clostridium difficile Severe diarrhea and colitis
Clostridium perfringens Food poisoning
Clostridium tetani Seizures, encphehalitis

FUNGI

DERMATOPHYTES
Epidermophyton Skin infections
Microsporum Skin infections
Trichophyton Skin infections
YEASTS AND YEAST-LIKE FUNGI
Candida albicans Thrush, nosocomial infections
Cryptococcus neoformans CNS-infections, fungemia (ICH)
Malasseiza species Nosocomial fungemia
Pneumocystis jiroveci Pneumonia in ICH
Trichosporon species White piedra (hair shaft infection), hypersensitivity pneumonia, dissemination in ICH
DIMORPHIC FUNGI
Blastomyces dermalitidis Lung infections, dissemination in ICH
Coccidioides immitis Lung infections, dissemination in ICH
Histoplasma capsulatum Lung infections potentially disseminating
Paracoccidioides brasiliensis Lung infection, potentially dissemination
Talaromyces (formerly: Penicillium) marneffei Talaromycosis: mostly in ICH: skin bumps, ARI, diarrhea
Sporothrix schenckii Skin-, lung-, disseminated infections in ICH
HYALINE MOLDS
Aspergillus famigatus Invasive disease in ICH/nosocomial infection
ZYGOMYCETES
Mucor species Skin-infections; respiratory infection in ICH
Rhizopus species As with mucormycosis; invasive CNS-diseases

PARASITES

PROTOZOA
Amebae Entamoeba histolytica Dysentery, colitis, perianal ulcers
Ciliates Balantidium coli Diarrhea
Flagellates Giardia lamblia Diarrhea, acute cholecystitis
Leishmania Splenomegaly, hepatomegaly, bleeding, decrease production of RBC
Trichomonas vaginalis STD: uretjritis, vaginitis
Trypanosoma Sleeping sickness
Sporozoa Babesia species Fever with parasitemia
Cryptosporidium Diarrhea
Cyclospora cayetanensis Diarrhea
Cystoisospora Diarrhea
Plasmodium spp. Malaria
Toxoplasma gondii Mononucleosis-like disease; CNS-infection in ICH, congenital disease 
Uncertain Classification
Blastocystis hominis

HELMINTHS (WORMS)

Cestodes Diphyllobothrium Intestinal obstruction
Echinococcus Cystic/alveolar organ infiltration
Taenia Cysts in CNS, muscels, eyes
Nematodes Ancylostoma Anemia, various complications
Ascaris lumbricoides Abdominal cramps
Enterobius vermicularis Anal itching
Strongyloide Abdominal, respiratory, skin symptoms; rare: hyperinfection syndrome
Thelazia species Eye infection
Toxocara species Visceral or ocular manifestations
Trichinella Trichinellosis: abdominal symptoms, organ infiltration with hypersensitivity symptoms
Trematodes Clonorchis Liver / gallbladder infection;
Schistosoma Liver fibrosis or bladder cancer