NBME 20 Norovirus (NBME Answers)

Retired NBME 20 Answers

nbme20/Block 2/Question#2 (reveal difficulty score)
Following a wedding reception that was ...
Norovirus 🔍 / 📺 / 🌳 / 📖
tags: micro

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submitted by ∗chandlerbas(118)

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i think because they were so specific in detail for when the sx began, theyre trying to test us if we know the onset of rota vs norovirus. also if you look at the transmission of rotavirus its FO and respiratory, so unless youre playing with poop at a wedding, its much more likely food was the transmission. sketchy says anytime you touch food with your hands its noro

heres a table for reference. https://contemporaryclinic.pharmacytimes.com/journals/issue/2016/february2016/best-approaches-to-acute-gastroenteritis

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dhkahat well i personally enjoy tossing the feces around at weddings but what do i know +5

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submitted by ∗strugglebus(189)

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submitted by ∗beeip(141)

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How to differentiate between Norovirus and Rotavirus here? Must be related to the the contagious nature of the illness?

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strugglebus You know it’s Noro because people are vaccinated against Rota at 2,4,6 months. +8

beeip @strugglebus: I didn't know about the vaccine schedule. Thanks! +1

strugglebus As an addendum, you know it’s not staph aureus b/c that is rapid onset within 4 hours. +5

asapdoc @Beeip If you go to the vaccines page in first aid it gives you all the high yield vaccinations. I didnt realize to correlate that page to a lot of questions until I got this answer wrong +5

savdaddy its norovirus b/c it can survive ~2 weeks without a host, which is why we see family members with symptoms 3 days after the initial virus. +

savdaddy ***after the initial outbreak +1

eacv for me this was a discart qx: 1.Giardia lamblia not showed steatorrhea and it needs medication to go away. 2. Rotavirus normally in unvaccinated kids. 3. Shiguella VERY inflammatory stool test do not show anything 4.S areus is very FAST 2-6 hr after eat the contaminated food. +4

link981 Norovirus is the most common cause of viral gastroenteritis in the USA due to vaccination. + Rotavirus is the most common cause of viral gastroenteritis in the rest of the world. In this question you had to know the most common cause. +2

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submitted by ∗usmleuser007(464)

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Norovirus (Sketchy) = Affects where a lot of people are in close quarters - especially common on cruises - 90% of all diarrheal outbreaks on cruises

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sbryant6 Rotavirus occurs in unvaccinated children. In order for it to spread, all those kids would have to be unvaxxed. +1

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submitted by ∗usmleaspirer(1)

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i think i have seen this in zanki cards...

Rotavirus- most common cause of viral diarrhea(watery) in CHILDREN.

Norovirus- most common cause of viral diarrhea(watery) in ADULTS.

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submitted by ∗strugglebus(189)

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submitted by ∗mdmikek89(6)

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This question is testing whether you know the difference in who the virus infects. Notice it says 25 adults...Norovirus. Rota is preschoolers.

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submitted by ∗link981(208)

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Norovirus is the most common cause of viral gastroenteritis in the USA due to vaccination. + Rotavirus is the most common cause of viral gastroenteritis in the rest of the world. In this question you had to know the most common cause

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submitted by ∗beeip(141)

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