B5.007 - Acute Viral Gastroenteritis Prework 1 Flashcards
clinical incubation period of AVG
18-60h
clinical symptoms of AVG
stomach flu diarrhea nausea vomiting abdominal pain low grade fever
complications of AVG
dehydration
electrolyte loss
treatment of AVG
rehydration
what type of virus is norovirus
ssRNA, non enveloped, caliciviridae
seasonality of norovirus
winter vomiting disease
transmission of norovirus
fecal oral, highly contagious, often associated with infected food handlers
shed for long duration after sx reduction (upt to 2 weeks)
food service workers should avoid handling food for at least 2 d after sx resolution
pop at risk for norovirus
adults in close quarters, military ships, institutionalized, children school age
cruise ships
infectivity of norovirus
environmentally stable
alcohol based hand sanitizers have reduced efficacy
Dx of norovirus
clinical, molecular
describe the virology of rotavirus
double stranded RNA, non enveloped, wheel like appearance on EM
seasonality of rotavirus
late winter/early spring
transmission of rotavirus
fecal oral, contaminated fomites
pop at risk for rotavirus
children 4-24 mo, most children infected by 5 yo
infectivity of rotavirus
environmentally stable
symptom duration of rotavirus
3-8 days
vaccine for rotavirus
Rotashield d/c RotaTeq RV5 3 doses Rotarix RV1 2 doses live attenuated orally dosed, infants <15 weeks, complete by 8 mo
dx of rotavirus
antigen, molecular
virology of adenovirus
dsDNA, non enveloped
>50 serotypes infect humans
symptoms of adenovirus
conjuctivitis
hemorrhagic cystitis
URI, LRI
seasonality of adenovirus
none
transmission of adenovirus
fecal oral
at risk pop for adenovirus
children
infectivity of adenovirus
environmentally stable
symptom duration of adenoviirus
6-9 days