In 2019, the World Health Organization (WHO) named vaccine hesitancy one of the top threats to global public health and pockets of low vaccination rates allowed measles to resurface in the U.S. Despite this, anti-vaccine advocates continue to draw significant attention and use social media to spread misinformation.

Advocacy efforts around vaccines had never been more important and there was an opportunity to spread the truth about vaccines. In an effort to engage the public and IDSA members on this issue, PCI planned and executed a Twitterstorm, PCI planned and executed a Twitterstorm in conjunction with IDWeek 2019, driving a sudden spike in activity surrounding a certain topic on Twitter, to shift the narrative to highlight positive vaccine stories and pro-vaccine advocates and all the good that they’ve done.