On December 22, a leader of the Lam Dong Provincial Department of Health said that based on the analysis results from the Nha Trang Pasteur Institute, the authorities detected Salmonella spp bacteria in nem chua and soursop samples.
This conclusion was made after the Food Safety and Hygiene Department directly collected the remaining food samples sold on December 12 at the Bibone bread truck.
These include: 1 jambong sample, 1 silk spring roll sample, 1 nem chua sample, 1 pangasius sample, 1 pork belly sample sent for testing at the Pasteur Institute Nha Trang.

Through tracing the origin of the food, the nem was purchased by this bakery from a production facility in Ho Chi Minh City, the pork belly is processed by the owner at home.
The poisoning incident broke out on the afternoon of December 12 when hospitals in Phan Thiet area (old Binh Thuan) received many people hospitalized with stomach aches, vomiting, multiple diarrhea, fever...
Doctors diagnosed a bacterial intestinal infection and monitored food poisoning.

Through medical history, the coincidence is that most patients have previously confessed to eating cold meat bread at a Bibone bread truck along Nguyen Thi Minh Khai Street, Phan Thiet Ward.
By the morning of December 17, a total of 89 cases had been hospitalized after eating bread at the above address.