Enteric infections

Question 1

Name 4 common bacterial causes of diarrhoea

Answer 1

E.coli
Vibrio cholerae
Shigella sonnei
Shigella dysenteriae

Question 2

Name 3 common antibiotic -associated causes of diarrhoea?

Answer 2

Clostridium difficile
Staphylococcus aureus
Candida albicans

Question 3

Name 2 common viral causes of diarrhoea

Answer 3

Rotavirus

Norovirus (also known as SRSV)

Question 4

Name 2 common protozoal causes of diarrhoea

Answer 4

Cryptosporidium

Giardia

Question 5

Name 5 common food poisoning microorganisms that can cause diarrhoea

Answer 5

Salmonella
Campylobacter
Clostridium perfringens
Bacillus cereus
Staphylococcus aureus

Question 6

Name 2 microorganisms that cause enteric fevers

Answer 6

Salmonella typhi

Salmonella parathyphi

Question 7

Which microorganism is commonly associated with gastritis and duodenal ulceration?

Answer 7

Helicobacter pylori

Question 8

What bacteria causes typhoid fever?

Answer 8

Salmonella typhi

Question 9

Define gastroenteritis:

Answer 9

A syndrome characterised by gastrointestinal symptoms including nausea, vomiting, diarrhoea and abdominal discomfort

Question 10

Define diarrhoea:

Answer 10

Abnormal faecal discharge, characterised by frequent and/or fluid stool; usually resulting from disease of the small intestine and involving increased fluid and electrolyte loss

Question 11

Define Dysentery:

Answer 11

An inflammatory disorder of the gastrointestinal tract often associated with blood and pus in the faeces and accompanied by symptoms of
pain,
fever,
abdominal cramps
usually resulting from disease of the large intestine

Question 12

Define food poisoning

Answer 12

Any disease of an infectious or toxic nature caused by, or thought to be caused by, the consumption of food or water

Question 13

What is the common cause of food poisoning associated with eating rice?

Answer 13

Bacillus cereus

Question 14

What stain should be used for identifying cryptosporidium?

Answer 14

Ziehl Neelsen stain