Food Borne illness

Question 1

•An illness caused by the consumption of food or water contaminated with bacteria and/or their toxins, or with parasites, viruses, or chemicals

Answer 1

Food Poisoning

Question 2

What is the presentation of food poisoing?

Answer 2

•Symptoms are arying in degree and combination:
–Abdominal pain, vomiting, diarrhea, and headache

–More serious cases can result in life-threatening neurologic, hepatic, and renal syndromes leading to permanent disability or death
•

Question 3

Criteria for Food-borne Disease Outbreak

Answer 3

•Similar illness, often GI, in a minimum of 2 people
•Evidence of food as the source
•

Question 4

Most common sources of food-borne illnesses

Answer 4

•Leafy green vegetables were the most common cause of food poisoning (22%), primarily due to Norovirus, followed by E coli O157
•Poultry was the most common cause of death from food poisoning (19%), with Listeria and Salmonella being the main infectious organisms

Question 5

•Leafy green vegetables were the most common cause of food poisoning (22%), primarily due to ____________________

Answer 5

Norovirus, followed by E coli O157

Question 6

•Poultry was the most common cause of death from food poisoning (19%), with __________________a being the main infectious organisms

Answer 6

Listeria and Salmonell

Question 7

Most common sources of food-borne illnesses

•______________ were the second most frequent causes of foodborne illnesses (14%) and deaths (10%), with the main factors being contamination **by Norovirus **from food handlers and improper pasteurization resulting in contamination with Campylobacter species

Answer 7

Dairy items

Question 8

•Dairy items were the second most frequent causes of foodborne illnesses (14%) and deaths (10%), with the main factors being contamination by _____________from food handlers and improper pasteurization resulting in contamination with Campylobacter species

Answer 8

Norovirus

Question 9

•nonenveloped virus with icosahedral nucleocapsid and ss-positive-RNA

• oral-fecal transmission
• most common cause of nonbacterial diarrhea in adults
• sudden onset of vomiting and diarrhea accompanied by fever and abdominal cramping

Answer 9

Norwalk virus (Norovirus)
VIRAL GASTROENTERITIS

Question 10

•Naked double-layered capsid with 10 or 11 segments of double-stranded RNA
•most common cause of childhood diarrhea
•

Answer 10

Rotavirus
VIRAL GASTROENTERITIS

Nmemonics:

Right Out The Anus

ROTAvirus causes diarrhea!

Question 11

Vaccines for rotavirus caused ______________

Answer 11

INTUSSUSCEPTION

Question 12

•curved gram-negative rod
•urease-positive
•microaerophilic
•

Answer 12

Helicobacter pylori
CHARACTERISTICS

Question 13

Particular Kinds Have Urease.

Proteus mirabilis

Klebsiella pneumoniae

Helicobacter pylori

Ureaplasma urealyticum

Answer 13

;)

Question 14

Where is the habitat of H.pylori and how is it transmitted?

Answer 14

• habitat is the human stomach
• transmission is by ingestion

Question 15

What is the pathogenesis of H.pylori?

Answer 15

• damages goblet cells
• production of large amounts of ammonia from urea by the organism’s urease

–ammonia also neutralizes stomach acid, allowing the organism to survive

Question 16

H. pylori is detected using the following tests:

Answer 16

–EGD with biopsy showing H. pylori
–urease breath test
–H. pylori stool antigen

Question 17

H. Pylori is more common in _____________-

Answer 17

DUODENAL ULCERS.

Note :

Relived by food: DUODENAL ULCERS.

Due to buffering of food sa stomach

Aggravated by food: GASTRIC ULCERS. Due to inc HCl upon food intake.

Wake up at night: DUODENAL ULCER.

Complications of PUD: Bleeding (MOST COMMON), perforation, obstruction (if its located at the PYLORUS, causing gastric outlet obstruction)

Gastric Outlet Obstruction: SUCCUTION SPLASH. Remember the maneuver. Different from FLUID-WAVE SIGN (seen in ascites)

If gastric ulcer perforates, the vessels affected are: LEFT GASTRIC ARTERY(since antrum ang common site ng gastric ulcer)

If duodenal ulcer perforates: GASTRODUODENAL ARTERY

Question 18

What are the disease association of H.pylori

Answer 18

•disease associations
–gastric carcinoma
–MALT lymphomas

Question 19

MESENTERIC ADENITIS (pseudoappendicitis)

Answer 19

Yersinia enterocolitica

Question 20

• Gram-negative rods
• reservoir: domestic animals
• transmission: oro-fecal route

Answer 20

Yersinia enterocolitica