DLA4- Intro to Foodborne Illnesses

Question 1

Allogenic factors for GIT infections

Answer 1

(external factors)
-diet geographic location (individually and together)

• age
• antibiotic therapy
• GI surgery

Question 2

Autogenic factors for GIT infections

Answer 2

(internal factor)

• environment (flora, pH, immunity)
• Temp (37C)
• oxygen (aerobic / anaerobic)
• mucus
• shedding of epithelium
• peristalsis

Question 3

the main treatment for acute diarrhea is…..

Answer 3

Rehydration therapy:
i) ORT (oral rehydration therapy): packets given containing water, salt (NaCl, KCl), sugar (glucose), trisodium citrate

ii) IV rehydration: for shock, exhaustion precluding oral feeding, ORT failure

Question 4

drugs (OTC) taken for diarrhea (non-ORTs)

Answer 4

• Antiemetics: reduce fluid loss (to inc rehydration effectiveness)
• Anti-diarrheals: reduces gut motility, allows for accumulation of fluid (rarely successful- sometimes good to rid of toxins)

Question 5

Food-borne infections:

• (1) low income country risks
• (2) high income country risks

-(3) basic principles

Answer 5

1- contaminated foods / water
2- technology / mass production of food

3- good hygiene, clean water, hand-washing, safe food manufacturing / production and preparation

Question 6

current vaccines for GIT pathogens

Answer 6

• *rotavirus
• *HepA, *HepB
• Cholera
• Typhoid