Given the part where players, either on the discord server or in the steam workshop comments, kept saying "Super Immune is broken, I've ate soup for a week and I'm still sick ", or "Even with Super Immune, I have been infected. Is the trait bugged?", here's the detailed description of the trait. I've made Super Immune myself, so I know how it works from top to bottom.


Super Immune is a trait that protects you from zombification. It automatically turns off any caught infections, and activates its own system that acts like the virus itself.
When active, your character will gain stress, which in turn gives you sadness. The sickness moodle also increases all the time, until 6 hours pass, at which point your immunity system starts to fight back. Your character's sickness will randomly go up and down, and you will take damage with it, making your character injured, sick and stressed, which can lead to low damage and low carry weight.
You cannot die with this trait from zombification, unless you set "Super Immune Weakness" sandbox setting true, which can kill you if enough infections have been caught at once.
Traits such as Fast Healer and Slow Healer impact the sickness value, and staying well fed decreases it and makes recovery faster.
As for the duration for you to eliminate the virus, it is between 10 and 30 days, however:
Fast Healer and Slow Healer decrease/increase the duration by 5 days respectively, cannot go below/above the 10-30 limit
Lucky and Unlucky decrease/increase the duration by 2 days, scaled with luck impact in sandbox, cannot go below/above the 10-30 limit
Catching multiple infections directly increases the duration by whatever it is rolled (10-30 and it is added to current recovery time)
If you already survived another infection before, the recovery time is cut in half and bypasses the limit, allowing for 5-15 days. Note, if you catch multiple infections, it can still take 30 days.
Super Immune may not work if you set infection mortality time to instant
God mode instantly turns it off, and checking "Is Infected" in debug will activate it, as that is turned on when a zombie infects you.