Previously, at around 7:30 p.m. on September 15, Xin Man District Boarding Secondary and High School for Ethnic Minorities organized a Mid-Autumn Festival for 300 secondary school students. After eating for 15 minutes, many students had symptoms of nausea, headaches, and stomachaches.

At 10:45 p.m. the same day, the students were taken to the hospital by their teachers for examination, diagnosed with food poisoning, given IV fluids, induced vomiting, treated for nausea and anxiety, and ordered to do tests.

According to Xin Man District Medical Center, a total of 55 children had to be hospitalized at Xin Man District General Hospital. After 8 hours of hospitalization, the patients' health condition was basically stable, they were alert, and now their stomach pain had subsided and they were more comfortable.

Sources said that the menu for the Mid-Autumn Festival meal of the students at Xin Man District Boarding Secondary and High School for Ethnic Minorities included lemon tea, kumquat, apple, pear, watermelon and pineapple; moon cakes; candy; and milk. The cause of the incident is being clarified by local authorities.

A series of students were poisoned by suspected milk tea . After drinking milk tea, 21 students of class 7/1 at Ton Duc Thang Secondary School ( Gia Lai ) had stomachaches, dizziness, and vomiting, suspected of poisoning.