inclusion_criteria: AND
type: symptom
name: Acute onset of high grade fever of usually 2-5 days or more
type: criterion
name: Other symptoms
logical_operator: AT_LEAST
logical_operator_arguments: 2
values: type: symptom
name: headache
type: symptom
name: retro-orbital pain
type: symptom
name: myalgia
type: symptom
name: arthralgia
type: symptom
name: rash
type: symptom
name: mild haemorrhagic manifestation
description: e.g. epistaxis, gums bleeding and petechiae