In early September 2017, an over-30-year-old male who resides in northern Taiwan traveled to Bali, Indonesia with 18 tour group members. On the following day the case returned, he sought medical attention after developing symptoms, including fever, diarrhea and nausea, and was diagnosed with shigellosis. After a further investigation conducted by the health authority, a female group member who is over 20 years old had also experienced symptoms, including vomiting and diarrhea and was also diagnosed with shigellosis. According to the cases, they consumed mostly cooked food while in Bali. However, they had seafood at a restaurant with poor hygiene. Hence, it was determined that these two cases constitute a cluster. As of now, none of the contacts residing in the same household with the 2 cases has developed suspected symptoms. Moreover, the local health authority has collected specimens from the other 13 tour group members who experienced symptoms for laboratory testing.
