Step I infant with vomiting and diarrhea - virus?

[GomerPyle]

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I'm having a hard time deciding whether vomiting and diarrhea in an infant (or even anybody) is more likely to be rotavirus or norovirus....can anyone help explain? If you have a 1 month old infant with vomiting and diarrhea, which is more likely?

 

[slz1900]

With no other info I'd probably choose rotavirus since norovirus is usually older kids.

 

[TBV]

Yeah I'd go rota unless there was more in the history

 

[Postictal Raiden]

From my understanding Rota is the most common one in young children while Noro is associated with restaurants epidemic.

 

[newyorkcitymed]

If it's an infant, it's always rotavirus. That's the one there's a vaccine for, if that helps you remember it (but you don't get the first dose until 2 months).

 

[Milotic]

Or I believe if they are infected with rota, which usually happens at a young age, they usually obtain immunity from that point on.

If the infant got it and then the mom/babysitter got it, then maybe think about norovirus if they are being sneaky without buzzwords like "cruise ship".

 

[GomerPyle]

Thanks guys! I just remember uworld saying that rotavirus is less common in the US because of vaccines, so I just wanted to clear it up. I guess the age really matters...the infant in the question was 2 months I believe

 

[Phloston]

Rota is the answer unless they say the kid was vaccinated against Rota, or if the other members of the family also have it, which means it's not going to be Rota.

Nora is one of the most common causes of viral gastroenteritis and is also the answer if they mention a virus from a cruise ship or close quarters.

 

[wjs010]

FYI adenovirus can cause a rota virus-like diarrhea in infants


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[SOML]

Annotated my FA rotavirus / norovirus stuff with stuff posted on SDN.
.. since reading stuff on SDN is more entertaining than tackling blocks and reviewing them haha. Thanks guys

 

[Phloston]

FYI adenovirus can cause a rota virus-like diarrhea in infants


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Nice. Going off of what you've said, especially if they mention conjunctivitis or red urine (can cause haemorrhagic cystitis).

 

[ortnakas]

This is my understanding too. If it's JUST the baby, go with Rota. If it's the baby + parent/older sibling/daycare worker, Noro is the better bet (everyone older than kindergarten or so should be immune from prior infection if not from vaccination).