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1) the absence of individual and the transmission process, thus resulting in the outbreak showed the incidence and short incubation period, suggesting a sharp short period of time most people may have the disease curve showed a sudden upward trend.
(2) poisoning patients tend to have similar clinical symptoms. Often nausea, vomiting, abdominal pain, diarrhea and other gastrointestinal symptoms.
(3) The incidence of food. Patients in the near future are eating the same food, the incidence limited the scope of such poisonous food consumption crowd, stop eating the food quickly stopped after the incidence, morbidity curve after the sudden rise was sudden downward trend.
(4) Food poisoning patients who do not have health infectious.
Tags:Food nutrition poisoning patients