Gastroenteritis

Question 1

E. Coli

Answer 1

Travellers Diorrhoea
Watery Stools, abdominal cramps and nausea
12-48hr Incubation Period

Question 2

Bacillus Cereus

Answer 2

Reheated Rice
1-6 hr incubation
Two types:
- Vomitting or Diorrhoea within 6 hrs

Question 3

Salmonella

Answer 3

Gram -ve Bacillus 
Diorrhoea can be bloody or non bloody
Eggs
Rose Spots on the chest or the abdomen
Diagnosis is through blood culture
Tx: Ciprofloxacin

Question 4

Shigella

Answer 4

Gram -ve Rod
Blood Diorrhoea vomitting ot abdominal pain
48-72 hr incubation

ampicillin or tetracycline if severe

Question 5

Amoebiasis

Answer 5

• Prolonged Bloody Diorrhoea
• Caused by entamoeba histolytica
• Incubation = >7days
• Treatment is metronidazole

Question 6

Giardiasis

Answer 6

• Prolonged non bloody diorrhoea
• DUe to giardia lambiala
• incubation is >7 days
• Treatment is metronidazole

Question 7

Campylobacter

Answer 7

• Most common cause
• Gram +ve bacillus
• Chicken, poultry and dairy products.
• Flu prodrome
• Crampy abdominal pain, fever, diorrhoea, could be bloody
• 48-72 hours
• Treatment is ciprofloxacin
• Treatment if severe is erythromycin