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. 2026 Aug 4;14:1871916. doi: 10.3389/fpubh.2026.1871916

Table 2.

Financial analyses: multiple single cohorts.

Age 50 (HR) 55 (HR) 60 65 70 75 80 85
IRR 68% 66% 56% 73% 62% 73% 52% 33%
Payback period (years) 2.7 2.8 3.2 2.6 2.9 2.5 3.0 3.7

HR: high-risk adults at increased risk of severe RSV disease due to certain underlying diseases; IRR: internal rate of return.