A measles outbreak is spreading across South Australia after a confirmed case is detected in a teenager associated with Brighton Secondary School, according to multiple outlets. Officials report that further transmission is emerging beyond the initially identified person and setting.

The reporting focuses on the location of the first linked case, Brighton Secondary School, and the broader spread of the outbreak across the state. All three sources describe the development as an expanding outbreak and do not present differing figures or timelines in the provided text. While the headlines emphasize the same trajectory—spreading across South Australia—the coverage in these excerpts does not include additional context such as the number of cases, investigation details, or specific public health measures. The common thread across outlets is the school-linked starting point and the ongoing spread.