During Haunt #43 - The Star Sickness, I was infected as a traitor early in the Haunt, but also previously harvested enough Mandrake root to make the serum. Not knowing what to do, I proceeded to the Lab and made the serum, but at this point it wasn't obvious what I should do.
The first thing the players asked was if I injected myself, which I did not, so they immediately suspected me of being a traitor. Given that I wasn't the last traitor to should I have just run away from the players to prevent them from curing themselves and hoping the damage rolls at the end of each turn eventually killed them?
If I was the last traitor to have been infected should I have tried to infect a weak player and hope they weren't strong enough to steal the serum from me?