VPH 123.3

Question 1

differentiate the types of syndrome under b. cereus

Answer 1

Vomiting (emetic) syndrome
Diarrheal Syndrome
Toxin
Cereulide (preformed toxin)
Enterotoxin
Incubation period

1-6 hours*
8-16 hours
Infectious dose
~100,000,000 CFU/g
1,000-1,000,000 CFU/mL
Symptoms
Nausea, vomiting, malaise → diarrhea (if prolonged)
Nausea, abdominal pain, and
watery diarrhea**

Question 2

common source/contaminated food for IB

Answer 2

honey

Question 3

given to reduce symptoms of norovirus

Answer 3

bismuth subsalicylate

Question 4

absence of this gene will lead to absence of symptoms if infected with norovirus

Answer 4

FUT2 gene

Question 5

hepatitis A virus is more severe in geriatric than in pediatric

Answer 5

true

Question 6

Hepatitis E virus’ genotype which infect humans

Answer 6

1 and 2

Question 7

Hepatitis E virus’ genotype which are isolated from mammals

Answer 7

3 and 4

Question 8

vaccine for hepa E approved in china

Answer 8

Hecolin

Question 9

Group of rotavirus which infects humans

animals?

Answer 9

A-C humans

D E F G - animals

Question 10

vaccine for rotavirus

Answer 10

rotarix oral vaccine
2,4 mos