At 1:10 p.m. on October 24, Nguyen Ngoc Binh Primary School organized a yogurt snack, made by a business in Dai Hiep commune, for the students staying at the school.

At 1:30 p.m. the same day, a female student named PNL (class 4D) was hit in the stomach by a male classmate while joking.

At 1:45 p.m., the students entered the classroom and L. said she had stomach pain, nausea, and vomited once.

Seeing your condition, 10 students in class 4D also reported mild stomach pain and nausea.

The homeroom teacher reported the situation to the school board.

At the same time, the school also recorded 1 student in class 2G with symptoms of nausea, 1 student in class 5E with symptoms of mild abdominal pain, 1 student in class 5D with symptoms of abdominal pain and nausea, 1 student in class 2A with symptoms of abdominal pain but no vomiting (total of 15 students).

The school took the children to Dai Hiep Medical Station for treatment and then transferred them to the Northern Quang Nam Mountainous Regional General Hospital for examination and treatment.

Upon receiving the report from the Commune Health Station, Dai Loc District Health Center sent staff to the hospital to investigate.

At 2:30 p.m. the same day, 15 students were seen at the emergency room of the hospital. Through information collection, all students were conscious, only L. was beaten in the stomach by a friend and complained of stomach pain.

At 4:30 p.m. the same day, the 13 children were released by the emergency department, but because their families were worried, they were admitted to the hospital for further monitoring and were transferred to the pediatric department. During the night, the children were playing normally at the hospital and had no symptoms.

At 8:00 a.m. on October 25, 5 parents came to the pediatrics department to sign a commitment to take their children home. It was recorded that at 12:00 p.m. the same day, the children who were hospitalized were taken home by their parents.

Dai Loc District Medical Center also concluded preliminarily: Based on the above information, there is not enough basis to determine the food poisoning case, but rather due to the crowd effect.