Mass anxiety attack in a primary school.

An alarm about suspected toxic gas leakage was raised in a primary school. All the students were evacuated by the staff and the community to a district hospital in Teluk Intan, Perak, about 8 km from the school. Sixty-four primary students from the school, four secondary school students and a students mother, who was near the school were all examined by a team of medical officers: Perceptions and records of the incidence from the students, staff and medical officers were recorded and examined by the author who visited the school and the hospital after the incidence. Psychosomatic symptoms related to anxiety attack were predominant There was no evidence of any gas leak. Symptomatic management was given by the medical officers. The psychogenic aetiology of the subsequent physical symptoms and behaviour, and the difference from epidemic hysteria are discussed.