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Bacterias
USCSOM: Micro: Memorizing bacteria
Genus species | Common Name/Disease | Gram, Shape, Aerobe | ID | Symptoms | Transmission | Treatment |
---|---|---|---|---|---|---|
Shigella | bacillary dysentery | neg, rods, facultative anaerobe | shiga toxin, responds to antibiotics | bloody feces, intestinal pain | oro-fecal, unwashed hands | ampicillin |
Salmonella enteritidis | salmonella | neg, rods, facultative anaerobe | nause, vomit, non-bloody | contaminated food | self-limiting, | |
Salmonella typhi | enteric fever, 'typhoid' | neg, rods, facultative anaerobe | Vi capsular antigen | GI, gallbladder | water, food, human | antibiotics |
Yersinia enterocolitica | yersinia | neg, rods, facultative anaerobe | grows in cold | diarrhea, fever, abdominal pain | water, milk, meat | antibiotics recommended |
Vibrio cholerae | cholera | neg, comma, fac anaerobe | oxidase +; cholera toxin | watery diarrhea, dehydration | feces/water, seafood | fluid, tetracycline |
Campylobacterjejuni | neg,spiral | microaerophilic, 42 deg | watery, dysentery, falaise, fever, abdominal pain, associatedwith Guillan-Barre | milk/meat | self limiting | |
helicobacter pylori | stomach ulcers | neg, sprial | urease+ producing NH3 and CO2 | increased cancer risk | chronically in stomach | antibiotic |
Treponema pallidum | syphilis | neg, long, motile | dark-field micro, antibody cardiolipin | chancre, flu, neuro | genital, utero | penicllin G |
Borrelia burgdorferi | Lyme disease | neg, long, motile | serum aBs | rash, bacteremia, neuro, arthritis,relapsing fever | ticks, | antibiotics early |
Leptospira | Leptosipra | neg, long motile | serology | flu-like, kidney brain, eye | water from animal urine | readily curable |
Neisseria gonorrhoeae | Gonococcus | neg, diplococci | chocolate, oxidase +, PCR | septic arthritis, dermatitis | sex | penicillin, ceftriaxone |
Neisseria meningitidis | Meningococcus | neg, diplococci | spinal fluid, Thayer Martin | meningitis | young, crowded, respiratory | Penicillin, vaccine w/ anti-capsular antibodies |
Streptococcuspyogenes | Group A Strep | pos, chains, fac anaerobe | beta-hemolysis, cat +, | rheumatic fever, bacteremia | ||
Streptococcusagalactiae | Group B Strep | pos, chains, fac anaerobe | beta emo, hydrolysis of hippurate,CAMP | |||
Eterococci | Group D Strep | pos, chains, fac anaerobe | bile-esculin, alpha/gamma hemolytic | UTIs | resist vancomycin | |
Viridans streptococci | pos, chains, fac anaerobe | alpha-heme, neg for other tests | endocarditis,dental caries | tooth extraction, orally | ||
Streptococcuspneumoniae | pneumonia | alpha-heme, solubule in bile | opportunisticupper repiratorytract | capsular vaccine, penicillin, vancomycin | ||
Staphylococcus aureus | commonest infection | pos, grapes, fac anaerobe | Beta, mannitol, cat+, coag+, golden pigmentation | pneumonia, osteomyelitis, srthritis,bacteremia, endocarditis | community and hospital | vancomycin |
Staphylococcus epidermis | common contaminant of cultures | pos, grapes, faculative anaerobes | non-hemo, mannitol-, pigment-, coag- | catheters, shunts, artificialheart valves | vancomycin | |
Staphylococcus saprophyticus | gamma-hemo, mann-, pigment-, coag- | UTIs | vancomycin | |||
Bacteroides fragilis | neg, rod,strict anaerobe, non-spore | strict anaerobe | abcess formation | not penicllin | ||
Clostridia tetani | tetanus | pos, rods, anaerobic spore | tetanus toxin | rigid paralysis,non-invasive | soil | vaccination |
Clostridia perfringens | gas gangrene | pos, rod, anaerobic spore | lecithinase+ | necrosis, swelling of tissue | soil, GI, food poisoning | antitoxin, antibiotic, debridement |
Clostridia botulinum | butilism | pos, rod, anaerobic spore | botulinum toxin | flaccid paralysis | food poisoning | anti-toxin, antibiotics |
Clostrisium difficile | C difficile | pos, rod, anaerobic spore | exotoxin A and B | pseudo-membranous colitis | normal flora alteration | discontinue current ABs, vancomycin |
Pseudomonas aeruginosa | neg, rod, aerobe, oxidase+, polar flagella | pigments: pyocyanisn, pyroverdin, fruity smell | burns and wounds, CF, cytotoxic drug therapy | airborne | ||
Mycobacteriumtuberculosis | TB | acid-fast, rods, obligate aerobe | production of niacin | man-man airborne | 2+ antibiotics | |
Mycobacteriumleprae | leprosy, Hansen's disease | acid-fast, obligate anaerobe | acid-fast stains of skin biopsies, lepromin | disfigurement | armadillo reservoir | dapsone, multi-drug |
Mycobacteriumavium/intracellulare | MAC complex | acid-fast, obligate anaerobe | CD4<100 | associated with AIDS | person-person in immunosupressed | multiple drug combinations |
Corynebacterium diphtheriae | diphtheria | pos, rod, strict aerobe | Loeffler's medium; metachromatic staining | choking? systemic and fatal injury | found in normal flora | anti-toxin, antibiotics, immunization |
Legionella pneumophila | Legionnares disease | neg, rod, faculative | buffered charcoal yeast extract, Cys+, Fe+ | pneumonia | aerosols, stagnant h2o, protozoa | erythromycin,can be self-limiting |
Bordetella pertussis | whooping cough | neg, short rod,strict aerobe | bordet-gengou medium, PCR | catarrhal (flu-like); paroxysmal, whoop, confalescent stage | aerosol droplets | erythromycin,vaccination |
Haemophilus influenzae | neg, non-motile | sheep blood agar around Staph, Hemo-, GF+ | meningitis | resides in upper airway | vaccination Hib | |
Haemophilus ducreyi | Chancroid | neg, non-motile | parallel rows of rods and chains on exudate smear | genital ulcers, regional lymphadenopathy | STD | azithromycin,ceftriaxone, cipro, erythro |
Brucellosis abortus | brucella | neg, coccobacilli,strict aerobe | non-hemo, non-motile, cat+, ox+, urease+ | suppurative febrile | cattle, cheese | tetra/doxy with rifampin |
Brucellosis canis | brucella | neg, coccobacilli,strict aerobe | non-hemo, non-motile, cat+, ox+, urease+ | suppurative febrile | dogs | tetra/doxy with rifampin |
Brucellosis suis | brucella | neg, coccobacilli,strict aerobe | non-hemo, non-motile, cat+, ox+, urease+ | prolonged, kidney lesions | swine | tetra/doxy with rifampin |
Brucellosis melitensis | brucella | neg, coccobacilli,strict aerobe | non-hemo, non-motile, cat+, ox+, urease+ | severe, recurring | goats/sheep, cheese | tetra/doxy with rifampin |
Francisella tularensis | tularemia | neg, nonmotile, short, aerobe | Serum aBs, BCYE | ulcerating papule w/ necrosis, flu-like | ticks, aerlsol | streptomycin,gentamycin |
Yersinia pestis | The Plague | neg, bacillus, bipolar, fac anaerobe | agar neg, buboes | black buboes, swollen lymph nodes, septicemia | fleas, infected rodents, airborne | streptomycin,tetracycline |
Listeria monocytogenes | Listeriosis | pos, short cains, fac intracellular | end-to-end tumbling at 25C, cold enrichment | GI, meningitis,flu-like | contaminated foods | penicillin +/- gentamycin |
Erysipelothrix rhusiopathiae | Erysipeloid | pos, rod, | nutrient broth, alpha-hemo | burning lesions on periphery,non-suppurative | skin abrasion contaminated animal/soil | penicillin |
Bacillus anthracis | anthrax | pos, rod, spore, aerobic | smear of vesicular fluid | malignant pustule, respiratory distress | contact, inhalation | penicillin, cipro, doxy |
Bacillus cereus | pos, aerobe, spore | food poisoning, eye infections | contaminated food | self-limiting | ||
Mycoplasma pneumoniae | 'walking pneumonia' | multiple shapes, strict aerobe | lack of cell wall, metabolizeglucose, cold agglutinins | atypical pneumonia, upper respiratory | aerosolized; confined pops | tetracycline, erythromycin |
Mycoplasma hominis | fac anaerobe | cell wall-, arg+ | pyelonephritis, postpartum fevers | colonization during birth | tetracycline, erythromycin | |
Mycoplasma genitalium | fac anaerobe | not cultured | pelivc inflam disease | tetracycline, erythromycin | ||
Ureaplasma urealyticum | fac anaerobe | cell wall-, urea+ | non-gonococcal urethritis, abortion, premature birth | colonization during birth | tetracycline, erythromycin | |
Chlamydia trachomatis | Chlamydia | like neg, LPS, energy parasites | iodine-staining inclusion bodies, antigens | trachoma (eyelids), conjunctivitis, discharge | droplets, hands, clothing, flies, birth | tetra, erythro, sulfas |
Chlamydophilapneumoniae | TWAR | like neg, LPS, energy parasites | 4x rise in titer | bronchitis, sinusiis, pneumonia | man-man by respiratory droplets | tetra, erythro |
Chlamydophilapsittaci | Parrot fever, ornithosis | like neg, LPS, energy parasites | 4x rise in titers | fever chills headach, non-productivecough | inhalation of bird droppings | tetra, erythro |
Rickettsia rickettsii | Rocky Mountain Spotted Fever | small, neg, coccobacilli,Giemsa stain | indirect fluorescent aB test | centripetal rash, fever chills, headach, myalgia | Tick, ixodid (hard) tick | tetracycline, chloramphenicol |
Rickettsia akari | Rickettsialpox | small, neg, coccobacilli,Giemsa stain | not available | papule, ulcerates, ,forms eschar; fever chills, headache, myalgia | Mite | tetra expedites recovery |
Rickettsia Prowazekii | Epidemic typhus | small, neg, coccobacilli,Giemsa stain | Immunofluorescent aBs | centrifugal rash, fever, chills, headache, myalgia | Louse | tetra expedites recovery |
Rickettsia typhi | Murine typhus | small, neg, coccobacilli,Giemsa stain | indirect fluorescent aBs | fever, chill, headache, myalgia, centrifugal rash | Flea, rats | Tetra |
Orientia tsutsugamushi | scrub typhus | small, neg, coccobacilli,Giemsa stain | aBs | fever, chill, headache, myalgia, centrifugal rash | Mite, chiggers | Tetra |
Ehrlichia chaffeensis | human monocytic ehrlichiosis | small, neg, coccobacilli,Giemsa stain | serology | like Rocky Mtn, -rash, +leukopenia | Lone Star tick | doxycycline |
Ehrlichia ewingii | human granulocytic ehrlichiosis | small, neg, coccobacilli,Giemsa stain | serology | like Rocky Mtn, -rash, +leukopenia | Lone Star tick | doxycycline |
Anaplasma phagocytophilium | human granulocytic ehrlichiosis | small, neg, coccobacilli,Giemsa stain | serology | like Rocky Mtn, -rash, +leukopenia | Deer/Dog ticks | doxycycline |
Coxiella burnetii | Q fever | small, neg, coccobacilli,Giemsa stain | aBs to Phase 2 or Phase 1/2 antigen | atypical pneumonia, fever, chill, myalgia, endocarditis | inhalation of airborne particles | tetracycline |
Bartonella quintana | trench fever, 5 day fever | neg, aerobe, bacilli | PCR/serology | severe pain in tibia, 5 day intervals | body louse | erythro, doxy |
Bartonella henselae | cat-scratch disease | neg, aerobe, bacilli | serology | chronic regional lymphadenopathy | cat scrach, bites, fleas | azithromycin |
Escherichia coli | E. coli | neg, rods, facultative anaerobe | serotype O157:H7; lactose +; pH acid | dysentery; hemolytic-uremic syndrome | fecal contamination | fluid |
Enterotoxigenic E. coli | ETEC; 'travelers diarrhea' | neg, rods, facultative anaerobe | heat labile toxin; heat stable toxin | watery diarrhea; fever, nausea | fecal | fluid |
Enteropathogenic E. coli | EPEC, infant diarrhea | neg, rods, facultative anaerobe | lesion involving microvilli | fever, diarrhea, vomit, nasuea, non-bloody | fecal | fluid |
Enteroaggregative E. coli | EAEC | neg, rods, facultative anaerobe | brick-like clumps | diarrhea, heavy mucus | fecal | non-invasive |
Enteroinvasive E coli | EIEC | neg, rods, facultative anaerobe | indistinguishable from shigellosis | rare in US | fecal | fluid |