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Joshua Weitz

@joshuasweitz.bsky.social

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Professor of Biology & Institute for Health Computing, U of Maryland; explores how viruses impact human and environmental health; 'Asymptomatic' (JHU Press, 10/2024) & 'Quantitative Biosciences' (Princeton U Press, 3/2024) & 'Science Matters' substack.

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Joshua Weitz·Apr 22

Today, our #SCIMaP team released an impact analysis of the White House proposed FY 2027 NIH and NSF budgets. Bottom-line: if enacted, cuts to science and medical research would lead to $35B in economic losses and 150,000 lost jobs in communities all across the US. scienceimpacts.org 🧵

Landing page for scienceimpacts.org
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Joshua Weitz·Sep 3

1000+ current and former HHS staff speak out: "Should he decline to resign, we call upon the President and U.S. Congress to appoint a new Sec. of HHS, one whose qualifications and experience ensure that health policy is informed by independent and unbiased peer-reviewed science." www.savehhs.org

savehhs.org calling for RFK Jr to resign
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Joshua Weitz·Aug 28

“[Monarez] had two lines in the sand,” Besser said. “One was anything that was deemed illegal. And the second was anything that she felt flew in the face of science. And she says she was asked to do both of those.” Principled leadership matters. RFK Jr is unfit to serve as Secretary of HHS.

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Joshua Weitz·Sep 3

Super team of physicians, scientists, and public health experts come together with a single message: RFK must go. "It is time to reverse course and begin rebuilding the public health infrastructure overseen by CDC. Kennedy has proven himself unwilling and ill-prepared to lead that effort. " 👇

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Latest posts

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Joshua Weitz·1d

Deadline today...

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Joshua Weitz·3d

The White House plans to continue undermining SBE next year, analysis as part of our July 2026 Insight on #SCIMaP "Cuts to NSF’s Social, Behavioral and Economic Sciences (SBE) Directorate will have significant economic impacts nationwide" scienceimpacts.org/insights/SBE...

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Joshua Weitz·4d

From July 2026 and relevant to this thread... on nihlism and interpreting where the money is going as being just as important as where the money is coming from.

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Joshua Weitz·6d

As follow-up. www.nationalacademies.org/donate-to-th...

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Joshua Weitz·Sep 29

MAHA's ongoing commitment to radical transparency.

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Joshua Weitz·Sep 29

"Politicized" Translation: supports researchers who may end up exploring topics and disseminating results they didn't control. The author, Chris Jacobs is founder and CEO of Juniper Research Group and wrote “The Case Against Single Payer." www.wsj.com/opinion/the-...

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Joshua Weitz·Sep 28

Wonderful profile of our new colleague in the Dept. of Biology in Maryland, @couchmicroscopy.bsky.social with secrets yet to be uncovered into a major evolutionary transition hanging out in murky waters. www.nytimes.com/2026/09/26/s...

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Joshua Weitz·Sep 28

“I’ve heard from a bunch of people in our field who say, ‘Uh oh, are they training on my prompts?’” Dr. Shipman said. “We can’t not think about it.” ... '[A]fter Anthropic’s announcement last week, he is winding down his projects with Claude.' “I’m shutting down everything,” [Dr. Mestre] said.

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Joshua Weitz·Sep 26

In this administration's view, "courage" to pursue truth in science, medicine and public health now includes someone who led a flawed study on cumulative infections early in the pandemic (never facing his mistakes) and used his position of newfound power to justify halting mRNA vaccine research.

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Joshua Weitz·Sep 26

Deep dive into the consequences as HHS leadership treats people, evidence & institutions with disdain. www.nytimes.com/2026/09/26/h...

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