Walking Contradiction is a symptom combo exclusive to the Necroa Virus DLC which causes zombies to experience irritation to sunlight, distracting them from daylight hunting. Severity slightly decreases when this combo is in play. The symptoms Photophobia, which decreases cure speed, and the Cathemeral Shift, which may increase cure speed, are required. The achievement Walking Contradiction is earned for forming the combo.

Symptom Combos in Plague Inc. and Plague Inc: Evolved.
AssassinBath TimeBlind GeniusBlood in the AirBoomerCarpe JugulumCranial DispersionDiscovery ChannelFly MagnetOn The Naughty ListOopsProfuse BleedingProjectile VomitingPublic DefecationRed Ape RedemptionRed RainRude AwakeningRunnerSpitterSwine FluTankUltimate ChristmasVampire BatWalking ContradictionWalking DeadZombie Panic
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