Is it possible to display symptoms of food poisoning days after eating questionable food?

by JohnnyHeartBreak
Question by Hayley Nace: Is it possible to display symptoms of food poisoning days after eating questionable food?
My roommate started vomiting this morning, and she's thinking that it was from Chinese food she ate about 30 hours before she began getting sick. Is it possible that you can only begin displaying symptoms of food poisoning many hours after you consumed it, or do you think she has a stomach bug? Thank you in advance!
Also, she was NOT running a fever at any

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