inclusion_criteria: AND
type: symptom
name: Sudden fever
logical_operator: OR
values: type: criterion
name: Rectal fever
description: Temperature > 38.5°C in rectum
type: criterion
name: Axillary fever
description: Temperature ≥ 38.0°C in armpits
type: criterion
logical_operator: AT_LEAST
logical_operator_arguments: 1
values: type: symptom
name: Stiff neck
type: symptom
name: Altered consciousness
type: symptom
name: Meningeal signs
description: Any other meningeal signs