62 Cards in this Set
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Produces streptolysins, toxins, streptokinase, hyaluronidase, deoxyribonucleases, and proteases
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Streptococcus pyogenes
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Its M protein in cell wall interferes with complement
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Streptococcus pyogenes
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causes strep throat
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Streptococcus pyogenes
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causes tonsillitis and ear infections
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Streptococcus pyogenes
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causes impetigo (pyoderma; red sores that rupture quickly to form yellowish brown crust) and erysipelas (painful, red, swollen rash on cheeks and bridge of nose)
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Streptococcus pyogenes
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causes Toxic Shock Syndrome
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Streptococcus pyogenes
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causes Scarlet Fever - bacteria infected with a phage produce erythrogenic toxin (inflammation, reddening of the skin)
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Streptococcus pyogenes
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causes necrotizing fasciitis (flesh eating)
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Streptococcus pyogenes
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Due to a phage infection, produces an exotoxin
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Corynebacterium diphtheria
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Until 1935, #1 cause of death in children in U.S.
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Corynebacterium diphtheria
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Toxin damages major organs and destroys white blood cells
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Corynebacterium diphtheria
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Pseudomembrane forms in throat - suffocation
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Corynebacterium diphtheria
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Early treatment with antitoxin can't neutralize toxin already bound to tissue
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Corynebacterium diphtheria
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Causes diphteria, conjunctivitis, bull neck, severe myocarditis
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Corynebacterium diphtheria
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Begins as respiratory tract infection; moves to blood/brain and kills quickly
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Neisseria meningiditis
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Lipid A causes shock - inflammation, fever, vasodilation, DIC, and petechiae (small skin hemorrhages)
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Neisseria meningiditis
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Vaccine available for military installations, prisons, classrooms; college students living in dorms
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Neisseria meningiditis
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Type b was #1 cause of children's meningitis before vaccine developed
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Haemophilus influenzae
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Hib vaccine developed to treat desease
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Haemophilus influenzae
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Causes ear infections, pink eye, epiglottitis, and pneumonia
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Haemophilus influenzae
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Does NOT cause influenza
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Haemophilus influenzae
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Causes whopping cough and is extremely contagious
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Bordetella pertussis
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Attaches to ciliated epithelial cells with a capsule and destroys these cells with a toxin
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Bordetella pertussis
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Can't move mucous b/c of 1st toxin; second toxin gets into blood stream and causes sytemic symptoms
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Bordetella pertussis
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Infant mortality - can't cope; brain damage; broken ribs
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Bordetella pertussis
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Chronix couch in adults that lasts for months
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Bordetella pertussis
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DTaP & Tdap vaccines
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Bordetella pertussis
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Waterborne organism
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Pseudomonas aeruginosa
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Causes urinary tract, lung, and wound infections
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Pseudomonas aeruginosa
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Causes dermititus and "swimmer's ear" from using public hot tubs, saunas, and pools
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Pseudomonas aeruginosa
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Dangerous for cystic fibrosis and burn patients
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Pseudomonas aeruginosa
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Many plasmids - Very resistant to antibiotics; can metabolize disinfectants, grows in odd places like bottle caps
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Pseudomonas aeruginosa
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Produces pigment that can make pus appear blue-green
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Pseudomonas aeruginosa
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Pathogenic organism behind the reason you cannot take plants into the hospital
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Pseudomonas aeruginosa
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Causes plague
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Yersinia pestis
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Vector is the rat flea; when rats die, flea jumps to humans
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Yersinia pestis
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Endemic in wild rodents like squirrels, chipmunks, prairie dogs
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Yersinia pestis
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Has a safety pin appearance in blood smear
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`Yersinia pestis
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Causes bubonic plaque - organism lives and proliferates in white blood cells; lymph nodes swell and develop buboes
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Yersinia pestis
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Causes septicemic plague - Black death
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Yersinia pestis
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organism spreads to blood stream from lymph nodes and causes setpciemia and endotoxic shock; you see dark purplish patches through the skin where hemorrhages occur
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Yersinia pestis
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Causes "ring-a-ring of rosies"
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Yersinia pestis
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Causes pneumonic plague; person-to-person spread by aerosol droplets; must treat within 12-15 hrs, almost 100% mortality from untreated cases
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Yersinia pestis
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Called "rabbit fever" but lives in many wild rodents
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Francisella tularensis
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Extremely virulent - 10 organisms can cause disease
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Francisella tularensis
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Infected by tick bite, blood from skinning animals, inhaling organism, eating infected meat
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Francisella tularensis
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Bioterrorism threat
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Francisella tularensis
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Symptoms depend on where organism enters body
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Francisella tularensis
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"Cat-scratch desease" - 50% of all cats carry this bacteria in their blood
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Bartonella henselae
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Can be transferred by cat saliva or fleas, but most from cat bite or scratch
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Bartonella henselae
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Disease begins with a papule at the site of infection in 7 to 10 days
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Bartonella henselae
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Swells the lymph nodes, causes malaise, fever
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Bartonella henselae
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Usually self-limiting disease, but can be treated with antibiotics
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Bartonella henselae
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Among the smallest bacteria
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Rickettsia
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Too small to Gram stain; can't be seen with normal light microscope
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Rickettsia
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Obligate, intracellular organisms; can't be grown on laboratory media
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Rickettsia
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Diagnosed with serologically
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Rickettsia
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Causes typhus (purple rash), Rocky Mountain spotted fever, ehrlichiosis, anaplasmosis
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Rickettsia
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Causes high fever, shaking, chills, headache, nausea, vomiting - later a rash appears
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Rickettsia
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Arthropods are vectors (ticks, lice, fleas mainained in animal resevoir)
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Rickettsia
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Causes inflammation and rupture of small blood vessels
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Rickettsia
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Causes black measels
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Rickettsia (Rickettsiosis or Rocky Mountain Spotted Fever)
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