Even if in many countries Covid19 isn’t an emergency anymore, in some other places the epidemic continues to spread, in a very threatening way. That’s why fake news about anti Covid19 vaccines are still dangerous. And that’s way those fake news must be fought. Urban Vision, one of the most important publisher of advertising spaces in Europe, decided to proactively use its spaces to fight fake news about anti-Covid19 vaccines. How? By taking the most shocking fake news from the anti-vaccines channels and showing them on a huge 3D billboard. This billboard was installed in a cental street of Milan, where massive anti-vaccines protests took place, blurting out the truth to protesters. The campaign generated spontaneous press impression, becoming a concrete support for the Italian Health Institutions for the vaccination campaign.