Researchers descend on cancer cluster community to find cause of deadly disease
Key Points:
- Additional environmental testing began in Ladera Ranch, Orange County, after six cases of the rare cancer Ewing sarcoma raised concerns among residents about potential environmental causes.
- Cal State Fullerton researchers collected samples from three parks to investigate any environmental links, with results expected as early as the end of the week.
- Residents have demanded the local homeowners association halt pesticide spraying, although no clear evidence currently links pesticides to the cancer cases.
- A 2024 county-level review found no unusual cancer patterns but acknowledged data limitations, prompting calls for a more focused assessment.
- Ewing sarcoma is a rare cancer mostly affecting children and teens, with Ladera Ranch and nearby areas reporting 9 to 12 cases and six deaths, including two recent young fatalities.