Getting all possible vaccines has a high potential to indirectly help in that: you become less likely to die or encounter serious ailments if you happen to get infected from the bird flu and any other endemic diseases such as covid, influenza, etc.
In games for example getting both paralyzed and poisoned means your chances of dying or having permanent long-term debuffs is more likely than if you had poison and/or paralysis immunity.
gonna confess I was high on edibles when I got my recent covid and flu shot😂
Totally worth it as the rest of my family got sick while I was working doing fine