The Infodemiology Brief

New data published in August underscores the real-world consequences of false and misleading narratives about vaccines, as public trust in routine immunizations dipped to historic lows. The mainstreaming of anti-vaccine rhetoric has given high-profile vaccine skeptics an even larger platform to attempt to discredit vaccines, new and old. False claims...

With a new school year and respiratory disease season rapidly approaching, vaccinations of all kinds are under attack online. Opposition to school vaccine requirements continues to grow as two presidential candidates recently promoted myths about routine vaccine safety. Adding to this false narrative are vaccine opponents who are using a...

Old myths rarely die in anti-vaccine conversations—they’re simply recycled. Two recent papers resurfaced discredited claims about COVID-19 vaccine safety, sparking days of contentious online discussions. Meanwhile, a second state official has launched a lawsuit against Pfizer, following the Texas attorney general’s anti-vaccine playbook. The lawsuit, like the...

Although vaccine skeptics and opponents are the most frequent purveyors of false claims about COVID-19 vaccines, sometimes more legitimate sources unwittingly help circulate misleading narratives. The amplification of alleged vaccine injuries by vaccine opponents creates an environment in which even good-faith attempts to discuss vaccine safety can add fuel to...

Bird flu has been in the headlines lately, so we’d like to point you to a helpful resource: Our new report describes how online discussions about H5N1 are recycling narratives about COVID-19. Take a read, and feel free to also check out our report on trending measles narratives, other...

Old false narratives have re-emerged in recent weeks as vaccine opponents raise objections to vaccines of all kinds. Some policymakers are using fears about emerging mRNA technology to score political points, while anti-vaccine advocates attempt to undermine the safety of childhood vaccines that have been in use for decades. Meanwhile,...

Scientific research is an important part of better understanding the safety and effectiveness of COVID-19 vaccines and is vital to help shape public health. But in the wrong hands, even legitimate data can be distorted. In just the last few weeks, data supporting additional protection for high-risk populations, national vaccine...

As much of the world’s attention shifts from COVID-19 to other public health concerns, some trending narratives are attempting to link COVID-19 vaccines to unrelated public health news. In the last month, vaccine skeptics have falsely claimed that COVID-19 vaccines cause everything from long COVID and AIDS to rising...

In the final weeks of 2023, some old but persistent myths about COVID-19 vaccines reemerged. Florida’s surgeon general, who has a history of promoting false claims, called for a ban on mRNA COVID-19 vaccines due to alleged cancer risks. Meanwhile, some popular social media accounts misrepresented news about disease...

Concerns about COVID-19 vaccine safety continue to cause vaccine hesitancy, fueled by a constant stream of misleading and false claims from vaccine opponents, including some prominent political officials. These anti-vaccine narratives are not original: They’re old claims given new life when attached to misrepresented studies, misused data, and political...