In our estimation, and with standard preference parameters, the value of the ability to end the pandemic is worth 5-15% of total wealth. This value rises substantially when there is uncertainty about the frequency and duration of pandemics. Agents place almost as much value on the ability to resolve the uncertainty as they do on the value of the cure itself.
That is from a new NBER working paper by Viral V. Acharya, Timothy Johnson, Suresh Sundaresan, and Steven Zheng. Their analysis also shows that preventing or limiting future pandemics may be a bigger deal yet.