Characteristic of Bacillus cereus food poisoning is-
Fever is not a consistent feature of B. cereus food poisoning.
Abdominal cramps may be seen in both emetic and diarrheal type of B. cereus food poisoning.

Ref: Apurba Sastry’s Essentials of Medical Microbiology 1/e p255, Ananthanarayan 9/e p249
Presence of fever
Presence of pain in abdomen
Absence of vomiting
Absence of diarrhoea