Hopefully.
I didn't want to say anything before, but he did mention that he had just received the vaccine before he disappeared.
It could just be a total coincidence, but, seeing how some people have had negative side-effects from the vaccine, it might be good if we all just say a prayer for him.
Again, he's probably fine, and he might even tell me off if/when he returns for overreacting, but, in my estimation, it's always better to be safe than sorry.
Besides, people tell me off every day anyway, so I've got nothing to lose.