I am always surprised at the willingness of people with vomiting and/or diarrhea to blame where they last ate for their illness. I dare say no one's home kitchen would likely pass a health inspector's criteria.
CDC - Guide to Confirming a Diagnosis in Foodborne Disease - OutbreakNet Team
To diagnose food poisoning the doctor's should have history and lab testing to support the diagnosis. It can be tricky because multiple patients may develop vomit/diarrheal illness after being together because of hand to hand spread of germs completely unrelated to the food they may have eaten.
A common example is the spread of Norovirus on cruise ships. A. Lots of intestinal distress, B. everyone is eating food from the same kitchen May not be related. While norovirus can be foodborne it is also wildly contagious from hand to hand and hand to surface contact (fecal oral spread)
Found a more up to date website for seeing inspection reports. You can even read the specific notes made by the inspector.
http://restaurantinspections.local10...sfl/records/70
If you use this site, the listing on the home page lists the number of violations at the most recent inspection. That can be a bit misleading as sometimes the most recent is a re-inspection because the one a day or two earlier had been problematic. When you click on a restaurant the next page will show you all the recent inspections of that business.