Opening remark from Dr. Tunggul Birowo, Deputy Director for Health Quarantine Directorate Surveillance and Health Quarantine. Tunggul appreciated all participants for engage to conduct TTX protocol cross border contact tracing and rapid outbreak investigation. He hopes after conducting TTX, participants can maintain good coordination and collaboration in order to better prepare for the next hard time. Tunggul motivated all participants together to support the protocol and give a good input to develop and implement this protocol for a better response in future pandemic.