Scope: The purpose of this guideline is to assist health care providers caring for patients with suspected or confirmed arboviral disease caused by dengue, chikungunya, Zika or yellow fever viruses. This guideline includes recommendations on the management of patients admitted to health care facilities (defined for the purpose of this guidance as “severe disease”) and those seen in outpatient facilities (defined for the purpose of this guidance as “non-severe disease”). Target audience: This guideline is designed primarily for health care providers who manage patients with clinically apparent arboviral infections. The guideline can be applied at all levels of the health system, including community-based care, primary care, emergency departments and hospital wards.