Symptom Combos are special combinations of symptoms (and in some cases infections) that can affect the stats of your disease, such as slowing Cure processing with the Walking Dead, or increasing infectivity with the Projectile Vomiting.
To acheive a combo, you must get two or more different symptoms that you might not usually use at the same time. They range from two tier 1 symptome to eight symptoms and two infections, so using them is a legitimate strategy for new players and advanced players alike.
|Projectile Vomiting||Increases Infectivity||
|Walking Dead||Decreases Cure Production||
|Profuse Bleeding||Slightly increases lethality||
Lowers productivity but draws attention to the plague.
|Public Defecation||Increases infectivity and cure research speed||
|Swine Flu||Slight increase in work needed for a cure||
|--------||All combos above are standard, the ones below are exclusive to the Necroa Virus.(the Neurax worm features no combos)||------------------|
|Vampire Bat||Increases Severity, Infectivity, and Lethality.||
|Tank||Slight Severity boost||
|Spitter||Slight Severity boost||
Enhanced Sensory Integration
|Boomer||Slight Severity boost||
|Walking Contradiction||Slight Severity decline||Photophobia, Cathameral Shift|
|Runner||Slight Severity boost||
Enhanced Motor Control
|Bathtime||Infectivity Boost||Autophagia, Polyphagia, Cannibalism|