Diseases - Lower Digestive Track

Question 1

Bloody stool, undercooked poultry or cross contamination raw poultry. Cytotoxin.

Answer 1

Campylobactor jejuni

Question 2

1-3 weeks incubation, fever like symptoms, contaminated water

Answer 2

Salmonella serotype Typhi

Question 3

Same as previous one

Answer 3

Salmonella serotype Paratyphi

Question 4

Incubation: 1-3 days. Gram neg.
Invade cells by taking advantage of M cells(non-moving), escape and enter macrophages which travel to epithelial cells. Multiply in epithelial cells, killing them, and causing bloody diarrhea (disentary) Fecal-oral - 5 F (fingers, fluids, food, feces)

Answer 4

Shigella

Question 5

Sea food. Attaches to the intestinal epithelium with flagella and releases enterotoxin and cytotoxin. Causes the nonstop activity of enzyme Adenylate cyclase (converts ATP to cAMP), cAMP causes the electrolytes to leave the cell, which causes water to leave the cell. Diarrhea. Fecal water contamination (remember these do quorum sensing)

Answer 5

Vibrio cholera

Question 6

Seafood, watery stool, overactive ion pumping out of cells

Answer 6

Vibrio parahemolyticus

Question 7

Oysters specifically (can cause toxic shock), watery stool, rash from skin water exposure

Answer 7

Vibrio vulnificus

Question 8

Stiff neck, meningitis. Can take several months. Unwashed veggies, soft non pasteurized cheese, hot dogs. (70% fatal)

Answer 8

Listeria monocytogenes

Question 9

-itis

Answer 9

inflammation