Table 1 Interview stems for semi-structured interviews with clinicians, conducted online in Vietnamese over 45 min

(1) Remember a case of dengue you have seen recently – what do you consider as the most important clinical decisions to make in your role?

(2) How do you tell dengue apart from other infectious diseases which cause fever? Is this difficult, what things do you find helpful in your practice?

(3) Describe how you would assess the severity of a patient with dengue

(4) How do you know or decide when a patient should be admitted, discharged or referred to another service (ICU or ward)?

(5) How do you define a complex dengue case?

(6) How do you assess if a patient needs intravenous fluids or blood therapy? What information do you base this decision on?

(7) How do final decisions about management in a patient with dengue get made?

(8) How do you feel if you had to manage cases of dengue outside the age group you are used to? How much difference is there in your management between an adult or a child?

(9) Can you tell me what personal or hospital factors allow for an ideal approach in dengue management?

(10) If a computer program could take in clinical and laboratory information and accurately provide a risk of severe dengue for a patient, would it be used, and how?