A retrospective cohort study on cassava food poisoning, Santa Cruz, Davao del Sur, Philippines, October 2015.

Objective: On 2 October 2015, the Event-Based Surveillance and Response Unit of the Department of Health (DOH), Philippines received a report of foodborne illness cases in Santa Cruz, Davao del Sur. A team from DOH was sent to conduct an investigation to identify the implicated source and determine risk factors.

Methods: A retrospective cohort study was done.