Until recently, in Tanzania, there was generally no e-EBS system. Data on outbreak events were collected manually from the community level, health facilities, and other sources, which is time-consuming and decreases timeliness in detecting and responding to the outbreaks. To address the challenge, the UDSM DHIS2 Lab worked with MDH, MoH and stakeholders under CDC funding to design, develop and implement a flexible and robust e-EBS system in Tanzania. The developed e-EBS is mobile-based and web-based for timely reporting and monitoring of public health events at any level.