Results of the sensitivity analysis of test characteristics.

<p>The costs of selective PCR-based screening are depicted on the horizontal axis and health benefits (infections averted) on the vertical axis. The left graph shows the combined results of alternately varying the test’s sensitivity and specificity from 50% to 100%, with increments of 5%. The right graph shows the test delay varied from 0 to 5 days, with increments of 0.5 day, for different pre-emptive isolation strategies: No pre-emptive isolation (diamonds), pre-emptive isolation of ‘flagged’ patients only, i.e. the base-case scenario (squares), and full pre-emptive isolation, i.e. ‘flagged’ patients as well as ‘high risk’ patients (triangles).