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10 Cards in this Set

  • Front
  • Back
What can cause black lesions on skin?
Pseudomonas, Anthrax
Gram positive rods, Club-shaped
Corynebacterium diptheriae
-pseudomembranes
-granules
-vaccine against toxoid
Tzanck Test
detects multinucleated giant cells of HSV -1, 2 and VZV
Hepatitis A comes from which virus family?

Hepatitis C?
-Picornaviridae

-Flaviviridae
Where do enveloped viruses get their membranes?
plasma membrane (except Herpes viruses, get their envelopes from Nuclear Membrane)

Naked viruses:
-DNA = PAPP: Parvo, Adeno, Papilloma, Polyoma
-RNA = CPR: Calci, Picorna, Reo
What does a positive leukocyte esterase test tell you?

positive nitrite test?
A UTI is bacterial

-Gram negative (E. Coli, Klebsiella)
Which bacterial toxins lyse the cell membranes and how?
Clostridium Perfringens: alpha toxin, which is a phospholipase that damages cell membranes.

Streptococcus perfringens: streptolysin O, which degrades the cell membranes. Anti-streptolysin O used to diagnose rheumatic fever.
What does Pertussis toxin do?
overactives AC (incr cAMP) to IMPAIR PHAGOCYTOSIS.
What is the major virulence factor of endotoxin?
Lipid A: induces TNF and IL-1
(O polysaccharide is the antigen, used to classify gr neg bugs)
What grows on Thayer-Martin (VPN) Media?
Neisseria species.