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Gram - cocci
Terms in this set (45)
Gram stain and shape of Neisseria species?
gram - diplococci
Is neisseria oxidase + or -
What 2 kinds of agar does Neisseria need?
chocolate agar and VPN (Thayer Martin)
What Ab's are enriched on VPN (Thayer Martin) agar?
What deficiency make you particular to neisseria?
Why is Neisseria so good at evading our immune system?
Because its Pili demonstarte antigenic variation
What is Neisseria's major virulence factor?
What is different about the fermentation between meningiditis and gonorrhea?
meningiditis and gonorrhea both ferment glucose but only meningiditis ferments maltose
How is meningiditis transmitted?
What is a unique virulence factor to meningiditis?
polysaccharide capsule that inhibits phagocytosis
Which species has a vaccine?
meningiditis, but not to type B
What type of pts are particularly susceptible to meningiditis
asplenic sickle cell pts
What part of meningiditis causes the inflammatory response?
What is a characteristic physical exam finding with someone who is infected with meningiditis? why does this occur?
Petechial rash; thrombocytopenia
Leaky capillaries and shock that is asscociated with meningiditis can eventually lead to?
Waterhouse-Friderichsen syndrome (hemorrhage of adrenals)
What is the tx for meningiditis?
3rd gen cephalosporin (ceftriaxone)
What are close contacts given prophylactialy for meningiditis
N. Gonorrhea is facultative?
Which types of cells are commonly infected by N. Gonorrhea ?
Which Neisseria species does not have a capsule?
What 2 things does N. Gonorrhea cause in men?
What is a major disease caused by N. Gonorrhea in women?
What type of physcial finding is classic for N. Gonorrhea?
White purulent discharge
What is the buzz word referring to when N. Gonorrhea has spread to the peritoneum?
Violin String adhesion form to capsule of liver
When PID invades the peritoneum what syndrome do we develop?
Fitz Hugh Curtis syndrome
What extra genital symptoms can N. Gonorrhea cause?
asymmetric arthritis (young sexually active male and female with arthritis, doesn't gram stain on aspiration because intracellular)
What neonatal disease can N. Gonorrhea cause?
early onset conjunctivitis
What is the tx of choice for N. Gonorrhea?
What else do you need to worry about when someone has N. Gonorrhea?
Coinfection with chlamydia so treat with azithromycin
What gram stain is yersinia
Y. enterocolitica is primarily transmitted through?
What pt population is commonly infected by Y. enterocolitica?
What is another way Y. enterocolitica can be transmitted?
milk products (like listeria)
What does Y. enterocolitica and listeria have in common?
Resistant to cold temps
How is Y. enterocolitica staining described?
bipolar staining that looks like a safety pin
Is Y. enterocolitica encapsulated?
what kind of diarrhea does Y. enterocolitica cause?
What does Y. enterocolitica mimic?
Yersinia pestis is the cause of?
what are the 2 main reservoirs for Yersinia pestis?
1. prairie dogs
what is the vector for Yersinia pestis?
what is the manifestation of the black plague?
buboes on the skin
The main virulence factor of Yersinia pestis is transmitted by?
Type III secretion system
What the the 2 tx for Yersinia pestis?
streptomycin with tetracycline
what type of vaccine is available for Yersinia pestis?
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