11/21/2025
I am posting this portion of an email from K. Jetelina of Your Local Epidemiologist in the interest of general public health. I agree with her, and do not know if we can trust any information on the CDC website going forward, including information on animal health.
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On Wednesday night, a directive from HHS forced the agency to publish scientifically false claims about vaccines and autism—claims the agency itself and scientists across the world had spent decades investigating, and study after study has shown no link. This wasn’t a debate or a misunderstanding, and no new data was presented. This was political actors overriding science in a place where accuracy, integrity, credibility, transparency, and honesty literally saves lives.
The damage doesn’t stay neatly contained to one webpage or one topic. When any part of the system is forced to publish something false, it immediately weakens the credibility and integrity of every other part that depends on shared trust. Hesitation, doubt, and confusion spread fast. Just yesterday, I was talking with colleagues responding to the infant botulism outbreak, and they asked, “How do you ask the public to trust that science on infant formula when another part of the agency is being forced to publish false information?”
What does this mean for you?
It’s getting harder and harder to know what is data-driven and what is spun, and now the CDC website has entered the arena.
There are parts of CDC I still trust, and there remains an important distinction between political operatives and the scientists doing the real work. In other words, there is still information there that I trust only because I have firsthand insight from friends and colleagues I speak with every week. That’s a privileged position to be in, and it’s not advice the general public can realistically rely on.
So, what do you do?
At this time, I suggest the general public avoid the CDC website.
If you do go to the CDC website, avoid anything on vaccines, reproductive health, environmental science, or health equity.
Data systems are still largely under the control of states and CDC scientists. Flu and wastewater data, for example, are good to go.
Find trustworthy navigators outside the federal government, such as AAP, ACOG, and healthychildren dot org, as well as many credible scientific communicators. (The Evidence Collective put together a comprehensive list of scientific communicators and organizations for you here!)
The good news is that the level of mobilization outside the federal government—by health systems, medical societies, researchers, local health leaders, and entire professional communities—is extraordinary. We can’t replace what a fully functioning CDC provides, but many people are stepping up, coordinating, and building the scaffolding we need to navigate this moment with clarity. There are also so many CDC career employees flagging falsehoods and interferences for those of us on the outside, and trying to hold the line.
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