I have lived in a game with a reputation of 4 loyal 49 days and have not been able to get the vaccine so far, tell me what exactly needs to be done to get it or how!?
Being honest with you, I'm unsure. I got it fairly early on. (Like day 20 or earlier.) This was before they finished their treehouse, I think. I would usually leave them a few shrimp packs daily. Eventually friendship maxes out, but I do it, because they are my frens.
