Thread by @IUIDfellowship

#idboardreview Outbreak in 50people post meal restaurant: Nausea+v(97%),cramps(85%),chills (75%),muscle aches(65%),fever(65%),HA(60%),diarrhea (55%). Incubation period 30 hrs. Illness lasted 48 hrs. 1 person hospitalized, 10 to doctor. Most likely pathogen? dx? #medEd #idmedEd

#norovirus: Vomiting predominates seen in >50%. Incubation period 24-48 hrs and illness lasts 12060 hrs. Confirm by stool PCR

DDx: not shigatoxin Ecoli STEC/enterohemorrhagic EColi which is more severe. More hospitalization and HUS would have been seen in this outbreak. Vomiting not predminant & high percentage have bloody stool with O157:H7

DDx: Campylobacter: diarrhea and dysentry should have been reported in many and vomiting not predominate as finding and illness lasts longer

DDx: not enterotoxigenic Ecoli as that causes typically watery diarrhea but no prominent nausea and vomiting

DDx: incubation period too long for staph aureus: generally staph aureus IC 2-7 hrs

*12-60 hours