Quantitative Viral Dynamics, U of Maryland, College Park + Institute for Health Computing, North Bethesda, Author of 'Asymptomatic' (JHU Press, Oct 2024)
College Park, MD
Joined July 2011
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Asymptomatic now available for pre-order via @JHUPress in advance of 10/22 release.
The book explains how silent transmission enabled COVID-19's tragic global impact and the interventions needed to prevent future pandemics.
bit.ly/asymptomatic-jhupress
So many reasons for a competitor to step in where the @washingtonpost and @murraymatt and @JeffBezos failed. Those of us who read the paper for decades and are cancelling subscriptions will miss something, including yes, the All-Met selections, championing local achievement.
Thank you to the professional writers, editors, and staff at @washingtonpost and to all those in @PostGuild: thank you for your commitment to reporting, no matter where it leads.
Joshua Weitz retweeted
I was just laid off by The Washington Post in the middle of a warzone. I have no words. I'm devastated.
Joshua Weitz retweeted
Marine viruses play a key role in storing carbon in the deep oceans, according to a new @NatureComms study.
Read about the findings in this @ConversationUS piece co-authored by Biology's Joshua Weitz (@joshuasweitz) ⤵️ theconversation.com/viruses-…
Joshua Weitz retweeted
Hours before 60 Minutes was set to air a story on deportees who were sent by the Trump administration to prison in El Salvador, describing “brutal and torturous conditions,” 60 Minutes announced that it has pulled the segment and will air it in the future.
ALT EDITOR'S NOTE The broadcast lineup for tonight's edition of 60 Minutes has been updated. Our report "Inside CECOT" will air in a future broadcast.
Joshua Weitz retweeted
Unbelievable. This would be a terrible blow to American science, writ large. It would decimate not only climate research, but also the kind of weather, wildfire, & disaster research underpinning half a century of progress in prediction, early warning, & increased resilience.
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs. usatoday.com/story/news/poli…
Joshua Weitz retweeted
This would be an extremely short-sighted move. NCAR is a world-class organization, and a leader in atmospheric science. And it's not as simple as "splitting up" the weather and climate portfolio. Seasonal/decadal (ENSO) and subseasonal (MJO) things that fall under the climate spectrum are hugely important to weather prediction and economic activity.
usatoday.com/story/news/poli…
Joshua Weitz retweeted
"Confronting Covid's Wake, In Practice - A template for open conversations within professional societies and conferences amidst ongoing attacks on science" | Thanks @joshuasweitz for the #ScienceUnderSiege mention!
joshuasweitz.substack.com/p/…
Joshua Weitz retweeted
The annual global health lecture in my sister Mona’s name @MedStarGUH was delivered last month by the great vaccine scientist @PeterHotez on “Global Vaccines and Immunizations in a Time of Climate Change, Megacities, and Anti-Science". Video now posted at: vimeo.com/1144358830
Did not know he is also a constitutional law scholar.
And apparently, basing his votes on factors unrelated to the matter at hand - effective control of vaccine-preventable diseases.
ACIP’s recommendations re Hep B vaccine reflect strong objection to vaccine mandates that prevent access to school & even clinical care from children not up to date with the vaccine schedule (including Hep B).
Children should have undeniable constitutional right to education!
Should the constitution be amended accordingly?
@SecKennedy @AaronSiriSG
Joshua Weitz retweeted
Awful self-inflicted wound for the nation. Today our federal govt gleefully condemned thousands of kids each year to chronic hepatitis and liver cancer, by denying them a vaccine invented in America, using microbial fermentation, our least expensive and safest technology
When you say "they double down" are you referring to @SenBillCassidy?
He called the ACIP committee “totally discredited”:
thehill.com/policy/healthcar…
They double down, but the truth is that @CDC data clearly show the decrease in Hep B cases had nothing to do with universal dose - started before it and occurred in older age groups!
They can’t accept ACIP’s risk based recommendations that align with developed countries.
Joshua Weitz retweeted
Today is a dark day for American science and biomedicine. My comments in @nytimes nytimes.com/2025/12/05/healt…
Voted yes when he had the chance to vote no.
And continues to hedge when he could act.
As a liver doctor who has treated patients with hepatitis B for decades, this change to the vaccine schedule is a mistake. The hepatitis B vaccine is safe and effective. The birth dose is a recommendation, NOT a mandate.
Before the birth dose was recommended, 20,000 newborns a year were infected with hepatitis B. Now, it’s fewer than 20. Ending the recommendation for newborns makes it more likely the number of cases will begin to increase again. This makes America sicker.
Acting CDC Director O’Neill should not sign these new recommendations and instead retain the current, evidence-based approach.
Joshua Weitz retweeted
Federal support of science research has catalyzed economic growth and advanced life-saving cures, diagnostics and therapies.
At Science on Tap next Tuesday (11/18), Biology's Joshua Weitz will discuss his efforts to confront federal cuts to science. RSVP: go.umd.edu/sot1125
ALT Graphic promoting Science on Tap on November 18, 2025, featuring UMD Biology Professor Joshua Weitz
Joshua Weitz retweeted
JUST IN: The Trump administration asks the Supreme Court to stop — by 9:30 tonight — the court orders requiring payment of full November SNAP benefits.
Joshua Weitz retweeted
BREAKING: DOJ goes to SCOTUS trying to stop a district court order that USDA pay out full SNAP benefits this month.
The First Circuit denied an administrative stay, but has not yet ruled on the stay request. And, CNN reported that USDA is already processing payments.
DOJ went to SCOTUS anyway.
Joshua Weitz retweeted
JUST IN: Trump administration appeals order to pay states full SNAP benefits for November.
Judge orders Trump administration to pay full SNAP benefits dlvr.it/TP6nxN
Joshua Weitz retweeted
Well, here's a first for me: a former masters student of mine at Harvard wants to get her PhD, but b/c of funding cuts and resulting cuts in PhD slots in the U.S., she's applying to...Tsinghua University for her PhD.
Wow
Joshua Weitz retweeted
My sister Mona would be so proud and honored that Dr. Hotez will be delivering this year's lecture in the series in her name @MedStarHealth
I look forward to speaking in Washington DC @Georgetown @GUMedicine @gumedcenter @MedStarHealth on November 7
