Enterobacteriacea Flashcards Preview

Patho Micro > Enterobacteriacea > Flashcards

Flashcards in Enterobacteriacea Deck (16)
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1
Q

how do people acquire EHEC?

A

enterohemorrhgic e coli
undercooked beef
unpaterurized milk
- diarrhea w/ ab pain

2
Q

what is hemolytic uremic syndrome?

A

kidey failure 5-10% >10yrds

3
Q

What toxin made by EHEC? reeptors?

A

2 shiga toxins

Stx1 and stx2 both have a and b subunit and dinds to G63 to inhibit protein synthesis

4
Q

sttaching and effacing

A

lesions from shiga toxins

5
Q

shigellosis?

A

shigellas most common disease gasroenteritis

6
Q

what type of cells shigella invade and where do they replicate?

A

cell in the colon invade M cells

7
Q

what 4 proteins shigella proteins secrete thu type 3 system

A

Ipa A B C D

these protein indice membran ruffling on the target cell leading to engulfment

8
Q

how does shigella survive

A

shigella survive intercellularly by phagocytosis and apoptosis

9
Q

apoptosis

A

programed death

10
Q

S dysteriae what is the toxin and resceptor>

A

shiga toxin and b
a- aminoacyl transfer RNA
b- G63

11
Q

how does shigella spread

A

person to person fecal-oral route

12
Q

what population is at risk of shigella

A

pediatrics 60% >10

13
Q

what disease is caused by yersinia pestis

A

bubonic plague. flea bite

pulmonary/pneumonic plague .person to person

14
Q

y pestis is __

A

zoonotic infection

resovior rats, domestic animals

15
Q

how are peole infected of yersenia pestis

A
  1. flea bites
  2. direct contact
  3. inhalation of infectous aerosol
16
Q

what are bubos

A

lymph nodes