I’m a physician who has looked at hundreds of studies of vaccine safety, and here’s some of what RFK Jr. gets wrong
The health secretary has made many inaccurate statements about vaccines. But the science is clear that vaccines have dramatically reduced childhood illness, disability and death.
June 26, 2025 • ~10 min
A preservative removed from childhood vaccines 20 years ago is still causing controversy today − a drug safety expert explains
There’s no solid evidence that thimerosal harms children. It was removed from almost all vaccines more than 20 years ago out of an abundance of caution, but RFK Jr.’s hand-picked vaccine advisory committee is looking into it.
June 25, 2025 • ~8 min
I’m an expert in crafting public health messages: Here are 3 marketing strategies I use to make Philadelphia healthier
The same tools that companies use to sell products can be used to encourage people to get vaccinated, get a colonoscopy or get treated for an infection.
June 23, 2025 • ~8 min
Gay Men’s Health Crisis showed how everyday people stepped up when institutions failed during the height of the AIDS epidemic – providing a model for today
Despite funding cuts, political scapegoating and internal tensions, thousands of volunteers came together in the 1980s to provide care to a stigmatized community.
June 18, 2025 • ~12 min
Ticks carry decades of history in each troublesome bite
Changes to forests, and how close people and their livestock live to them, have changed tick habitats and the risks humans face of Lyme disease and other illnesses.
June 18, 2025 • ~9 min
When developing countries band together, lifesaving drugs become cheaper and easier to buy − with trade-offs
Pharmaceutical companies have little incentive to sell drugs to countries that can’t afford them. But bargaining together can increase access to vital treatments worldwide.
June 17, 2025 • ~10 min
Data on sexual orientation and gender is critical to public health – without it, health crises continue unnoticed
The Trump administration’s CDC data purge means researchers can no longer effectively track and address health issues affecting LGBTQ+ people – and ultimately society as a whole.
June 13, 2025 • ~6 min
RFK Jr’s shakeup of vaccine advisory committee raises worries about scientific integrity of health recommendations
The Advisory Committee on Immunization Practices guides the CDC’s hand on vaccine policy, but some of its new members have voiced anti-vaccine views.
June 12, 2025 • ~11 min
Adolescents who smoke or vape may believe tobacco’s perceived coping benefits outweigh accepted health risks
Public health messaging focused solely on the health risks related to using tobacco products misses the mark with some teens.
June 12, 2025 • ~7 min
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