Appendix Figure. Optimal cost-effectiveness of antiviral (AV) and test stockpiling (0–30 million units) for clinical attack rates (CARs) of 15%, 25%, and 35% under the a) 1918 and b) 1957/69 scenarios. The composite test (Test A) and a perfect test of 100% sensitivity and 100% specificity (Test B) are included. The most cost-effective strategies lie on the efficiency line.
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