A good opportunity to rearrange these shelves and play book puzzle ^^

Bookmail 💌 from the lovely people @galleybeggars.bsky.social

Yes.

But I would like to know, in a host immunology perspective, would there be any downside in keeping the Yamagata strain?

So. Drawbacks?
Higher cost means lower access for sure.
Here is another potential drawback: according to Pr K. Subbarao, cultivating the virus for vaccination, would present a very slim but real risk of reintroducing this extinct strain in the environment.

Now, apart from the cost, what are the drawbacks of immunizing people against something that has vanished?
First, has it vanished forever?