We are infected with the new, mutated virus UO-COVID-19.

Introduction: Optimism is boosted by leaders hoping for job creation, increased business spending, and a high consumption rate. In this research, we assessed the hazardous side effect for global health policies stemming from this optimism: unrealistic optimism (being unrealistically optimistic about future negative events), which may be responsible for new infections and may prevent the eradication of COVID-19. The goal of the research was not only to assess whether this effect exists and to find out whether such an effect is global but also to evaluate whether there are groups resistant to this effect (presenting a potential toolkit for reducing this effect).