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Nathan Lo

@nathanlo.bsky.social

490 followers 240 following 63 posts

Stanford physician-scientist | Infectious diseases, epidemiology, modeling, and public health | Views mine | Lo Lab: http://profiles.stanford.edu/nathan-lo

profiles.stanford.edu

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Nathan Lo @nathanlo.bsky.social · Apr 24

🧵1/N New study published in @jama.com on re-emergence of vaccine-eliminated infectious diseases under declining vaccination in the US. We model long-term risk and conditions for return to endemicity for measles, rubella, polio, & diphtheria. Collab w/ @Mathewkiang.com jamanetwork.com/journals/jam...

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Lena Sun @lenasun.bsky.social · 20h

NEW: @CDCgov hit hard by massive firings that several staff describe to me as a “bloodbath.”
Among those RIFd:
—leadership of the center for immunization and respiratory diseases;
—leadership of global health center
—leadership of the measles outbreak response; 1/4

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BK. Titanji @boghuma.bsky.social · 2d

In the era of widespread population immunity , among veterans COVID vaccines still reduced the risk for COVID related emergency room visits, hospitalization and death in the 2024-2025 vaccination season, especially in older veterans >65 years.
www.nejm.org/doi/full/10....

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NEJM.org @nejm.org · 3d

𝘈𝘦𝘥𝘦𝘴 𝘢𝘦𝘨𝘺𝘱𝘵𝘪 mosquitoes spread chikungunya, dengue, and Zika. In a trial in Mexico, targeted indoor residual spraying led to lower mosquito levels but not lower disease risk. Full trial results: nej.md/46J4e7O

#MedSky #IDSky

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Joshua Weitz @joshuasweitz.bsky.social · 4d

More are united around a simple message: RFK Jr should not be HHS Sec. His decisions undermine our public health capacity and put lives and health at risk.

As 6 former Surgeon Generals argue:

"He has rejected science, misled the public and compromised the health of Americans."

🎁
wapo.st/3VTALll

Opinion | Six surgeons general: RFK Jr. is a threat to the health of Americans

It was our duty in office to warn of dangers when we found them. We’re doing that again today.

wapo.st

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NEJM.org @nejm.org · 4d

Plague is a high-consequence infectious disease with epidemic potential.

The latest video in our partnership with @glaucomflecken.bsky.social summarizes new research evaluating ciprofloxacin versus aminoglycoside–ciprofloxacin for bubonic plague in Madagascar. 👉 nej.md/DrG27

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JAMA @jama.com · 8d

Atul Butte, MD, PhD, helped define the field of translational bioinformatics and inspired countless colleagues and trainees.

He will be remembered for his brilliant mind, infectious optimism, generous mentorship.

Remembering Atul Butte

This Medical News article is in remembrance of Atul Butte, MD, PhD, a pioneer in using data science to improve health.

jamanetwork.com

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JAMA @jama.com · 10d

💬 Viewpoint: Eliminating vaccine mandates in Florida threatens public health by increasing disease outbreaks, costs, vaccine hesitancy, and risks to vulnerable populations.

ja.ma/46M6bPs

A JAMA viewpoint article titled "Potential Repercussions of Eliminating Mandatory Vaccination in Florida" discusses vaccine objections and mandates. A table lists sixteen infectious diseases controlled/eliminated in the US using vaccines and their impact.

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JAMA @jama.com · 10d

💬 Viewpoint: The resurgence of #measles and erosion of immunization policy, coupled with declining vaccination rates and undermined public health agencies, threaten to return the US to an era of frequent, preventable disease outbreaks.

ja.ma/4pU4BUO

A JAMA viewpoint article titled 'The Measles Resurgence' by Jane R. Zucker. It includes a table with reported vaccine-preventable disease cases and deaths in New York City for 1923 and 2023.

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Prof Peter Hotez MD PhD DSc(hon) @peterhotezmdphd.bsky.social · 11d

Excited to co-author this study led by @nathanlo.bsky.social @stanfordmedicine.bsky.social on the devastating consequences of not vaccinating pregnant women vs Covid

jamanetwork.com/journals/jam...

Modeling the Health Impact of Discontinuing COVID-19 Vaccination During Pregnancy in the US

This decision analytical model study estimates the number of avertable COVID-19 hospitalizations in US infants younger than 6 months and pregnant persons with vaccinations during pregnancy.

jamanetwork.com

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Nathan Lo @nathanlo.bsky.social · 12d

What is the impact of the HHS decision to no longer recommend COVID-19 vaccination during pregnancy? In our new research letter in @jamapediatrics.com, we provide estimates on the number of infant hospitalizations under different vaccine scenarios here. @mathewkiang.com, @peterhotezmdphd.bsky.social

Modeling the Health Impact of Discontinuing COVID-19 Vaccination During Pregnancy in the US

This decision analytical model study estimates the number of avertable COVID-19 hospitalizations in US infants younger than 6 months and pregnant persons with vaccinations during pregnancy.

jamanetwork.com

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Prof Peter Hotez MD PhD DSc(hon) @peterhotezmdphd.bsky.social · 19d

Trump administration says Tylenol in pregnancy may raise autism risk; experts push back, my comments with @houstonchronicle.com

www.houstonchronicle.com/news/houston...

Experts respond to claim Tylenol use during pregnancy linked to autism

The Trump administration says that the active ingredient in Tylenol may increase risk for autism if used during pregnancy, experts push back.

www.houstonchronicle.com

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Nathan Lo @nathanlo.bsky.social · 19d

New NBC story on measles outbreak in pockets of low vaccination - worrisome

NBC News @nbcnews.com · 19d

One of the largest measles outbreaks in the U.S. is now centered in bordering areas of southwestern Utah and Arizona.

Measles outbreak growing in parts of Arizona and Utah, health officials say

Measles vaccination rates have plummeted in the neighboring communities over the last 10 years.

nbcnews.to

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BK. Titanji @boghuma.bsky.social · 21d

25% of Drs in US are foreign grads. Many are on an H1B visa. This will hit health systems hard especially rural hospitals and hospitals in underserved areas that sponsor these visas through waiver programs. The old cost was about 5000$ a year.
www.theguardian.com/us-news/2025...

Trump signs proclamation imposing annual $100,000 fee on H-1B visas

Move deals potentially major blow to US tech industry, which relies heavily on workers from India and China

www.theguardian.com

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Carl T. Bergstrom @carlbergstrom.com · 21d

I have to keep this deliberately vague, but this is a total disaster for academic research.

And imposing it so suddenly is just cruel. I’ve got friends scrambling to get back to the US before midnight tonight. Do you know how hard that is to do on 36 hours of notice?

Trump to impose $100,000 fee per year for H-1B visas, in blow to tech

The Trump administration said on Friday it would ask companies to pay $100,000 per year for H-1B worker visas, prompting some big tech companies to warn visa holders to stay in the U.S. or quickly return.

www.reuters.com

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Michael Baym @baym.lol · 21d

Immigrants, particularly on H1Bs, are the lifeblood of American innovation. If you wanted to hurt US competitiveness in the next century, I can think of few more effective ways than a move like this

Even when found illegal, the mere intent will have irreparably harmed our future

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Demetre Daskalakis @drdemetre.bsky.social · 21d

My ACIP recap: 🧵

1) MMRV combo vaccine no longer recommended for children <4y. That means vaccine will not be covered by insurance, so not an option for patients. The 2 shot MMR and chickenpox vaccines are still available. This removes access. Let’s see which vaccine they will go for next!

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Why Should I Trust You? Podcast @whyshoulditrustyou.bsky.social · 23d

The very first shot a baby gets is now under review.

Should the Hep B “birth dose” stay the starting point of America’s vaccine schedule, or be delayed to rebuild trust?

We asked @pauloffit.bsky.social & @michaelmina.bsky.social, take a listen here:
podcasts.apple.com/us/podcast/t...

The Hepatitis B Birth Dose Vaccine: Do We Need It? An Honest Conversation w Dr. Paul Offit & Dr. Michael Mina

Podcast Episode · Why Should I Trust You? · 09/18/2025 · 1h 22m

podcasts.apple.com

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Demetre Daskalakis @drdemetre.bsky.social · 22d

In June, an ACIP member said that 250 pediatric flu deaths were no big deal. Maybe today we will find out that a handful of hepatitis B related cancers, transplants, and deaths are also not a big deal to them either. Welcome to the new public health. We are aligned to a manifesto, not science.

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Jake Scott, MD @jakescottmd.bsky.social · 23d

There it is: admitting they’re changing vaccine policy to address ‘concerns,’ not because of any scientific evidence. ACIP’s mandate is to follow data, not public opinion. When you sacrifice evidence-based medicine to appease political constituencies, children pay the price.

ACIP member Dr. Robert Malone: “It’s clear that a significant population in United States has significant concerns about vaccine policy and vaccine mandates.”

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Demetre Daskalakis @drdemetre.bsky.social · 23d

NO TRUST IN ACIP!

Well, the absolutely incomprehensible vote at the end of the ACIP meeting has left everyone confused. MMRV resolution passed, so it’s off the schedule for younger children and CMS won’t cover it.

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Alt CDC (they/them) @altcdc.altgov.info · 23d

Folks, we survived Day 1 of the September #ACIP meeting

On the surface, it may not have seemed *too* terrible:

BUT‼
There were several points made by fAkeCIP members during discussion that have us concerned
We'll go into that more in a bit, but first let us crack open a cold 🍺

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Barack Obama @barackobama.bsky.social · 23d

After years of complaining about cancel culture, the current administration has taken it to a new and dangerous level by routinely threatening regulatory action against media companies unless they muzzle or fire reporters and commentators it doesn’t like.

Let’s be clear about what happened to Jimmy Kimmel

Trump’s most brazen attack on free speech yet.

www.yahoo.com

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Clinical Infectious Diseases @cidjournal.bsky.social · 24d

Annual Variant-Targeted Vaccination to Prevent Severe COVID-19 in Cohorts With Vaccine-Derived and Hybrid Immunity

#IDSky

Annual Variant-Targeted Vaccination to Prevent Severe COVID-19 in Cohorts With Vaccine-Derived and Hybrid Immunity

Among US Veterans with hybrid immunity for COVID-19, annual variant-targeted booster vaccination yielded modest but significant gains in protection against

bit.ly

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BK. Titanji @boghuma.bsky.social · 25d

We have 2 vaccines that prevent cancer, the HBV vaccine that prevents hepatitis B related liver cancer and the HPV vaccine that prevents cervical cancer and other HPV associated cancers.
On Thursday, RFK.JR's ACIP will attack one of these vaccines (HBV) and restrict access to it.
Let that sink in!

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Nathan Lo @nathanlo.bsky.social · 26d

Check out this multi-part story on declining vaccination in the US, nice to get to work with folks from @nbcnews.com to conduct this investigation! @stanfordmedicine.bsky.social

NBC News @nbcnews.com · 26d

SPECIAL REPORT: A large swath of the U.S. currently does not have the basic, ground-level immunity necessary to stop the spread of viruses that had once receded into the past, a six-month NBC News investigation in collaboration with scientists at Stanford University finds.

Data investigation: Childhood vaccination rates are backsliding across the U.S.

A monthslong NBC News data investigation finds that much of the U.S. doesn't have the protection needed to stop the spread of deadly diseases. St. Louis is a window into the problem communities face nationwide.

nbcnews.to

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