Nelson - Ch. 198 Salmonella

Question 1

Typhoidal Salmonella preferentially enter ___ cells which transport them to lymphoid T and B cells in the underlying Peyer patches of the GIT

Answer 1

M cells

Question 2

Non typhoidal salmonella vs typhoidal salmonella: Enter intestinal macrophages and disseminate throughout RES

Answer 2

Typhoidal Salmonella

Question 3

Non typhoidal salmonella vs typhoidal Salmonella: Induce an early local inflammatory response which result in infiltration of PMNs into intestinal lumen and diarrhea

Answer 3

NTS

Question 4

Non typhoidal salmonella vs typhoidal Salmonella: Gastroenteritis of rapid onset and brief duration

Answer 4

NTS

Question 5

Non typhoidal salmonella vs typhoidal Salmonella: Longer incubation period and duration of illness in which systemic illness predominates and only a small proportion get diarrhea

Answer 5

Typhoidal Salmonella

Question 6

T/F Frequency of typhoid fever in immunocompetent and immunocompromised individuals differ

Answer 6

F, DO NOT differ

Question 7

Salmonella ? motility ? spore-forming ? encapsulated ? Gram staining ? aerobic

Answer 7

Motile, nonsporulating, non encapsulated, G- rods, aerobic but capable of facultative anaerobic growth

Question 8

Salmonella can be killed by

Answer 8

Heating to 54.4C for 1 hr OR 60C for 15mins

Question 9

T/F NTS cause gastroenteritis that is often uncomplicated and does not need treatment but can be severe in the young, elderly, and patients with weakened immunity

Answer 9

T

Question 10

2 most important serotypes of salmonellosis transmitted from animals to humans

Answer 10

S. enteritis and S typhimurium