If fast testkits are to be used (D2), a patient will only have to spend 1 h in the hospital for diagnosis and the result (of whether he/she has contracted pandemic influenza) to be released. Alternatively, slow testkits can be used. However, with slow testkits, there is a waiting time of 12 h. Depending on the diagnostic approach, the patient can either resume his/her daily routine (D3), or wait in the hospital (D4). Under D3, if the test turns out positive the person will be recalled back to the hospital where the appropriate treatment (for policies P2 -P4 only) is carried out. We assumed that the recall success rate is 100 per cent. By default, all tests (regardless of actual techniques) are set to be 100 per cent specific and 70 per cent sensitive.