Bacterial Enteric Infections

Question 1

Bacteria

Answer 1

Salmonella, shigella, E. coli, Campylobacter, Yersinia

Question 2

Viruses

Answer 2

Rota, noro, astro, adeno, entero

Question 3

Parasites

Answer 3

Entamoeba, guardia, cryptosporidum

Question 4

Rules for avoiding enteric pathogens?

Answer 4

Cook it, boil it, peel it, or forget it

Question 5

Acute gastroenteritis

Answer 5

Diarrheal disease of rapid onset

Question 6

What is the timeline searing acute and chronic diarrhea?

Answer 6

14 days

Question 7

Dysentery

Answer 7

Blood or mucous in the stool

Question 8

What causes bacterial gastroenteritis?

Answer 8

Inflammation in GI tract fram bacteria

Question 9

What does bloody stool tell us?

Answer 9

Associated with mucuousal invasion of bacteriaW

Question 10

What does watery stool tell us?

Answer 10

No mucosal invasion

Question 11

What season is GE associated with?

Answer 11

BBQ

Question 12

What causes acute, watery diarrhea?

Answer 12

Rotavirus, E. coli, vibrio cholera

Question 13

What causes acute bloody diarrhea?

Answer 13

Shigella, entamoeba histolytica

Question 14

Compare bacterial and viral GE

Answer 14

Viral: small intestine, watery, vomiting, sometime ABD pain, no tenesmua
Bacterial: colon, blood, sometime vomiting, always ABD pain, always tenesmus

Question 15

What are some risk factors for salmonella?

Answer 15

Found in animal guts, inadequate thawing from frozen, international travel, taking antacids, IBS,flies

Question 16

What is an infectious dose of salmonella?

Answer 16

> 1000 organisms

Question 17

What does salmonella invade?

Answer 17

GI mucosa

Question 18

Typhoid fever

Answer 18

Extra-intestinal salmonella. This comes from salmonella type or patathyphi. The bacteria enters the blood stream and breaks intestinal wall

Question 19

Who do we give antibiotics to when someone has salmonella?

Answer 19

<2, >65, immunocompromised, pregnant

Question 20

(T/F) you should leave extra intestinal salmonella alone and let it follow a self-limiting course

Answer 20

False. Always treat this

Question 21

Who carries shigella?

Answer 21

Humans and insect vectors

Question 22

What are Shigella identical to?

Answer 22

E. coli// however, shigella are non-motile bacteria

Question 23

How many shigella for an infection?

Answer 23

10-200 organisms

Question 24

Clinical presentation of shigella?

Answer 24

Fever, headache, malaise, anorexia- ABD colic, crams, diarrhea gets worse

Question 25

What does shigella produce that leads to cell death? What do part A and B do?

Answer 25

Shiga toxin, a- prevents protein synthesis b-binds to cells and injects part A

Question 26

How do you treat shigella?

Answer 26

Self limiting, unless severe and can be treated with antibiotics when the case is NOT mild.

Question 27

Do all E. coli lead to an infection?

Answer 27

No. but at least 5 types doe

Question 28

Risk factors for E. coli

Answer 28

consumption undercooked beef, non-pasteurized dairy, raw veggies, farms, travel

Question 29

List the E. coli associated with diarrhea

Answer 29

STEC, EPEC, ETEC, EIEC, EAEC

Question 30

Complications seen with STEC infections?

Answer 30

Hemolytic uremic syndrome, lead to dialysis or death and neurological complications, Associated with antibiotic therpay

Question 31

Where is campylobacter found?

Answer 31

GI of birds, uncooked poultry, can get from your hamster

Question 32

How do you treat a serious campylobacter infection?

Answer 32

antimicrobial therapy