The March 19-22 gathering at a boarding school in a rural area in South Sulawesi province was canceled after it became clear that a similar event held three weeks earlier in Malaysia was the source of more than 600 infections.
An estimated 16,000 people attended the Malaysian event, and attendees who were infected there were found on their return to Brunei, Cambodia, the Philippines, Singapore, Thailand and Vietnam.
Hundreds of people who came for the event in Sulawesi were quarantined at a hotel after it was canceled.
The Thais who returned to their homes in the country’s south were being quarantined in their own provinces, while those who tested positive were sent to hospitals. In Songkhla province, hosting the biggest number, the returnees were being kept at a dormitory inside a sport complex.