Bacterial Diseases

Microbiology exam 4 prep

Pseudomonas aeruginosa infection (including otitis externa and burn/nosocomial infections)

Pseudomonas aeruginosa

Melioidosis

Burkholderia pseudomallei

Brucellosis (undulant fever)

Brucella spp.

Tularemia

Francisella tularensis

Pertussis (whooping cough)

Bordetella pertussis

Legionellosis (Legionnaires’ disease)

Legionella pneumophila

Pontiac fever

Legionella pneumophila

E. coli gastroenteritis – EPEC

Escherichia coli (enteropathogenic, EPEC)

E. coli dysentery – EIEC

Escherichia coli (enteroinvasive, EIEC)

E. coli watery diarrhea – EAEC

Escherichia coli (enteroaggregative, EAEC)

Traveler’s diarrhea – ETEC

Escherichia coli (enterotoxigenic, ETEC)

Hemorrhagic colitis – EHEC (O157:H7)

Escherichia coli (enterohemorrhagic, EHEC), serotype O157:H7

Cystitis (bladder infection)

Usually Escherichia coli; also Staphylococcus saprophyticus

Pyelonephritis

Usually Escherichia coli

Nontyphoidal salmonellosis

Salmonella enterica serotype Typhimurium

Typhoid fever

Salmonella enterica serotype Typhi

Shigellosis (bacillary dysentery)

Shigella spp. (S. sonnei, S. flexneri, S. boydii, S. dysenteriae)

Yersinia gastroenteritis / ileitis

Yersinia enterocolitica

Yersinia pseudotuberculosis infection

Yersinia pseudotuberculosis

Plague – bubonic

Yersinia pestis

Plague – septicemic

Yersinia pestis

Plague – pneumonic

Yersinia pestis

Haemophilus influenzae disease (including Hib meningitis)

Haemophilus influenzae; type b (Hib) associated with vaccine-preventable disease

Chancroid (soft chancre)

Haemophilus ducreyi

Syphilis

Treponema pallidum

Congenital syphilis

Treponema pallidum

Bejel

Treponema pallidum subspecies

Yaws

Treponema pallidum subspecies

Pinta

Treponema pallidum subspecies

Leptospirosis (including Weil’s disease)

Leptospira interrogans

Lyme disease

Borrelia burgdorferi

Relapsing fever

Borrelia spp.

Cholera

Vibrio cholerae

Campylobacter enteritis

Campylobacter jejuni

Gastritis and peptic ulcer disease

Helicobacter pylori

Epidemic typhus

Rickettsia prowazekii

Endemic (murine) typhus

Rickettsia typhi

Rocky Mountain spotted fever

Rickettsia rickettsii

Ehrlichiosis (human monocytic ehrlichiosis, HME)

Ehrlichia chaffeensis

Anaplasmosis (human granulocytic anaplasmosis, HGA)

Anaplasma phagocytophilum

Q fever

Coxiella burnetii

Trachoma (ocular)

Chlamydia trachomatis

Inclusion conjunctivitis of newborn

Chlamydia trachomatis

Chlamydiosis (genital chlamydia)

Chlamydia trachomatis

Nongonococcal urethritis (NGU)

Chlamydia trachomatis; Mycoplasma genitalium and Ureaplasma urealyticum also listed as causes

Pelvic inflammatory disease (PID)

Chlamydia trachomatis; Mycoplasma genitalium/Ureaplasma urealyticum also associated; N. gonorrhoeae may also cause PID

Lymphogranuloma venereum (LGV)

Chlamydia trachomatis

Primary atypical pneumonia (walking pneumonia)

Mycoplasma pneumoniae

Dental caries (cavities)

Streptococcus mutans (most important cariogenic organism)

Gingivitis

Streptococci, actinomycetes, anaerobic Gram-negative bacteria

Periodontitis

Plaque bacteria (multiple species)

Anthrax – cutaneous

Bacillus anthracis

Anthrax – pulmonary (inhalational)

Bacillus anthracis

Anthrax – gastrointestinal

Bacillus anthracis

Gas gangrene (myonecrosis)

Clostridium perfringens

Tetanus (lockjaw)

Clostridium tetani

Botulism (foodborne, infant, wound)

Clostridium botulinum

C. difficile colitis (pseudomembranous colitis)

Clostridioides difficile

Listeriosis

Listeria monocytogenes

Diphtheria (respiratory or cutaneous)

Corynebacterium diphtheriae

Tuberculosis (primary, secondary, disseminated)

Mycobacterium tuberculosis

Leprosy (Hansen’s disease) – tuberculoid and lepromatous

Mycobacterium leprae

Staphylococcal skin infections (folliculitis, furuncle, carbuncle)

Usually Staphylococcus aureus

Staphylococcal scalded skin syndrome

Staphylococcus aureus

Bullous impetigo (staphylococcal)

Staphylococcus aureus

Staphylococcal food intoxication

Staphylococcus aureus

Toxic shock syndrome

Staphylococcus aureus

MRSA infection (healthcare-associated or community-associated)

Methicillin-resistant Staphylococcus aureus

Impetigo (Group A streptococcal)

Streptococcus pyogenes (Group A beta-hemolytic)

Erysipelas

Streptococcus pyogenes (Group A beta-hemolytic)

Necrotizing fasciitis

Streptococcus pyogenes (Group A)

Streptococcal pharyngitis (strep throat)

Streptococcus pyogenes (Group A)

Scarlet fever

Streptococcus pyogenes (Group A; prophage-carrying strain)

Rheumatic fever

Post-streptococcal immune complication after Streptococcus pyogenes pharyngitis

Acute glomerulonephritis

Post-streptococcal immune complication after Group A infection

Neonatal Group B streptococcal disease (pneumonia, sepsis, meningitis)

Streptococcus agalactiae (Group B)

Dental caries / plaque-associated disease

Viridans streptococci, especially Streptococcus mutans

Subacute endocarditis

Viridans group streptococci

Pneumococcal disease (pneumonia, meningitis, otitis media)

Streptococcus pneumoniae

Gonorrhea (including genital and extragenital infection)

Neisseria gonorrhoeae

Gonococcal ophthalmia / neonatal eye infection

Neisseria gonorrhoeae

Pelvic inflammatory disease (PID) – gonococcal/mixed

Neisseria gonorrhoeae and/or Chlamydia trachomatis; mixed infections may include Mycoplasma, Ureaplasma, Haemophilus, enterics

Neisseria meningitidis meningitis / meningococcemia

Neisseria meningitidis