Food poisoning

Question 1

norwalk virus

Answer 1

associated with cruise ships self limited diarrhea for 2-3 days without skin lesions

Question 2

cruise ship diarrhea

Answer 2

norwalk virus it survives chlorination and other forms of disinfection

Question 3

Bacillus or cereus food poisoning.

Answer 3

toxins are found in fried rice and associated with food poisoning. self limited rapid onset of nausea and vomiting and lasts for 1-6 of ingestion diarrhea may occur later in the dx and it rarely causes sepsis as seen in patient.

Question 4

diarrhea and abdominal cramping, ingestion of preformed toxin in starchy foods like rice

Answer 4

Bacillus cereus

Question 5

vomiting, abdominal pain, diarrhea is not typical but can occur caused by preformed toxin and rapid onset of symptoms

Answer 5

staph aureus

Question 6

abdominal pain, watery diarrhea and possible fever bloody stools unusual associated with antibiotic exposure

Answer 6

c diff

Question 7

brief illness with watery diarrhea and cramps, fever associated with undercooked and unrefrigerated food

Answer 7

clostrium perfringens

Question 8

watery diarrhea, fever, abdominal pain, vomiting seen with undercooked foods, especially poultry and eggs (cookie dough) antibiotic tx only needed for severe dx or immunocompromised pts

Answer 8

salmonella no cookie dough

Question 9

vomiting, diarrhea, abdominal pain associated with raw or undercooked shellfish may cause invasive life threatening dx in immunocompromised pts who have liver dx

Answer 9

vibrio vulnificus

Question 10

watery diarrhea, may be bloody if associated with enterohemorrhagic Shiga toxin producing strain seen with undercooked beef or foods contaminated with bovine feces

Answer 10

Shigella

Question 11

abdominal pain, bloody diarrhea highest incidence in kids, young adults associated with raw or undercooked meats

Answer 11

campylobacter species

Question 12

Do we ever isolate the organism responsible for presenting symptoms?

Answer 12

no not really

Question 13

vomit predominant cases of foodborne illness are likely:

Answer 13

staph aureus, B cereus enterotoxins which are preformed prior to ingestion and cause rapid onset (1-6 hrs) illness see abdominal cramps, vomiting and diarrhea occasionally fever

Question 14

when do we see Campylobacter jejuni infection?

Answer 14

2-5 days after ingestion

see small volume diarrhea that causes blood or mucus

linked to poultry and 20% develop vomiting

Question 15

Foodborne illness from Clostridium perfringens onset is

Answer 15

quick. also preformed toxin and so will have illness <24 hrs no vomiting and see watery diarrhea

Question 16

ETEC or enterotoxigenic E coli illness occurs

Answer 16

>24 hrs and causes diarrhea predominant illness traveler’s diarrhea

Question 17

raw shellfish diarrhea illness

Answer 17

vibrio parahemolyticus

Question 18

inflammatory diarrhea pathogens are:

Answer 18

Campylobacter, Shigella, Salmonella

they invade the large bowel and result in abrupt onset, crampy, abdominal pain and frequent small volume diarrhea that lasts several days after consumption

see blood and mucus (not always present) in stool. Can have febrile prodrome and N/V. These are self limited except for enterhemorrhagic E Coli (EHEC)

Question 19

non inflammatory diarrhea food borne pathogens are:

Answer 19

enterotoxin producing bacteria Clostridium perfringens and enterotoxigenic E coli.

Fever is rarely present

see infection of small bowel and leads to large volume watery diarrhea with or without nausea, vomiting, abdominal cramps and bloating.

Question 20

norovirus symptoms

Answer 20

headache, myaglias, acute onset vomiting and diarrhea (non bloody with loose or watery stools) resolves in 72 hrs

Question 21

EHEC producing Shiga toxin is from

Answer 21

under cooked ground beef can develop into HUS

Question 22

overview of foodborne disease

Answer 22

Question 23

2 weeks of water diarrhea and was in Mexico. Has Entamoeba histolytica in serology and stool antigen. What do you treat her with?

Answer 23

metronidazole

do not treat with albendazole (treats parasitic worms) or praziquantel (treats schistosomiasis and cysticercosis)