Nathan Lo
@nathanlo.bsky.social
Stanford physician-scientist | Infectious diseases, epidemiology, modeling, and public health | Views mine | Lo Lab: http://profiles.stanford.edu/nathan-lo
Pinned
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...
Reposted by Nathan Lo
- He stopped the policy of encouraging flu immunization in Louisiana
- Delayed reporting on a pertussis outbreak that killed two children in Louisiana.
-Promoted false information on covid vaccine harms.
He is now number 2 at CDC.
www.nbcnews.com/health/healt...
- Delayed reporting on a pertussis outbreak that killed two children in Louisiana.
-Promoted false information on covid vaccine harms.
He is now number 2 at CDC.
www.nbcnews.com/health/healt...
Controversial Louisiana surgeon general tapped for CDC leadership role
Louisiana Surgeon General Ralph Abraham has spoken against Covid shots and ended mass vaccination campaigns. Now he's in a position to make national health decisions.
www.nbcnews.com
November 25, 2025 at 6:49 PM
- He stopped the policy of encouraging flu immunization in Louisiana
- Delayed reporting on a pertussis outbreak that killed two children in Louisiana.
-Promoted false information on covid vaccine harms.
He is now number 2 at CDC.
www.nbcnews.com/health/healt...
- Delayed reporting on a pertussis outbreak that killed two children in Louisiana.
-Promoted false information on covid vaccine harms.
He is now number 2 at CDC.
www.nbcnews.com/health/healt...
Reposted by Nathan Lo
BREAKING: Louisiana health official who ordered his health department to stop promoting mass vaccinations during a surge in flu cases this winter has been tapped to be the new number 2 at @CDCgov. My story.
www.washingtonpost.com/health/2025/...
www.washingtonpost.com/health/2025/...
New leader tapped for CDC had stopped pushing vaccines amid flu surge
Ralph Abraham, a Louisiana health official who stopped promoting mass vaccination vaccines, has been appointed as the CDC's principal deputy director
www.washingtonpost.com
November 25, 2025 at 5:20 PM
BREAKING: Louisiana health official who ordered his health department to stop promoting mass vaccinations during a surge in flu cases this winter has been tapped to be the new number 2 at @CDCgov. My story.
www.washingtonpost.com/health/2025/...
www.washingtonpost.com/health/2025/...
Reposted by Nathan Lo
Breaking News: Robert F. Kennedy Jr. said he personally instructed the CDC to abandon its position that vaccines do not cause autism. The move underscores his determination to challenge scientific orthodoxy — in this case, that vaccines save lives — and bend the health department to his will.
RFK Jr. Says He Instructed CDC to Change Vaccines and Autism Language on Website
In an interview, Health Secretary Robert F. Kennedy Jr. cited gaps in vaccine safety research. His critics say he is ignoring a larger point: Vaccines save lives.
nyti.ms
November 21, 2025 at 6:56 PM
Breaking News: Robert F. Kennedy Jr. said he personally instructed the CDC to abandon its position that vaccines do not cause autism. The move underscores his determination to challenge scientific orthodoxy — in this case, that vaccines save lives — and bend the health department to his will.
Reposted by Nathan Lo
New study shows that shifts in SARS‑CoV‑2 Ct value distributions can help nowcast epidemic trends, revealing both strong potential and key real‑world limitations for Ct‑based surveillance. From CCDD alumni TY Lim & @jameshay.bsky.social and faculty @yhgrad.bsky.social at bit.ly/4o37EaN
Nowcasting epidemic trends using hospital- and community-based virologic test data - Nature Communications
Population-level distributions of SARS-CoV-2 viral load can correlate with epidemic trends. Here, the authors use viral loads to nowcast epidemic growth rates over two-week periods and investigate how...
bit.ly
November 21, 2025 at 3:54 PM
New study shows that shifts in SARS‑CoV‑2 Ct value distributions can help nowcast epidemic trends, revealing both strong potential and key real‑world limitations for Ct‑based surveillance. From CCDD alumni TY Lim & @jameshay.bsky.social and faculty @yhgrad.bsky.social at bit.ly/4o37EaN
Reposted by Nathan Lo
“Since 1998, independent researchers have conducted more than 40 high-quality studies involving over 5.6 million people. The conclusion is clear and unambiguous: There’s no link between vaccines and autism." -Dr. Susan Kressly, AAP President on recent changes to the CDC's website
November 20, 2025 at 3:24 PM
“Since 1998, independent researchers have conducted more than 40 high-quality studies involving over 5.6 million people. The conclusion is clear and unambiguous: There’s no link between vaccines and autism." -Dr. Susan Kressly, AAP President on recent changes to the CDC's website
Reposted by Nathan Lo
How awful. This is outright health disinformation, lying to the American people. Not only is there massive evidence showing no link between vaccines & autism, there’s not even a plausible mechanism based on what we’ve learned about the genetics of autism, some environmental exposures in pregnancy
HEADS UP: CDC website now officially asserts that vaccines may cause autism.“Studies supporting a link have been ignored by health authorities.” Also says the “vaccines do not cause autism” header remains b/c of an agreement with Cassidy.
November 20, 2025 at 3:18 AM
How awful. This is outright health disinformation, lying to the American people. Not only is there massive evidence showing no link between vaccines & autism, there’s not even a plausible mechanism based on what we’ve learned about the genetics of autism, some environmental exposures in pregnancy
Reposted by Nathan Lo
Honored to receive the Ashford medal from @astmh.bsky.social. Much credit goes to my mentors, collaborators, colleagues, and our team @utah.edu @uofuhealth.bsky.social @uofumandi.bsky.social. Even more gratifying was seeing my trainees recognized for their work earlier in the day. #GlobalHealth.
Congratulations to the #TropMed25 Bailey K. Ashford Medalists:
🏅Gordon A. Awandare of University of Ghana
🏅Lauren M. Cohee of @lstmnews.bsky.social
🏅@danieltleung.bsky.social of @utah.edu
🏅Fredros Okumu of @uofglasgow.bsky.social
🏅Gordon A. Awandare of University of Ghana
🏅Lauren M. Cohee of @lstmnews.bsky.social
🏅@danieltleung.bsky.social of @utah.edu
🏅Fredros Okumu of @uofglasgow.bsky.social
November 16, 2025 at 8:25 PM
Honored to receive the Ashford medal from @astmh.bsky.social. Much credit goes to my mentors, collaborators, colleagues, and our team @utah.edu @uofuhealth.bsky.social @uofumandi.bsky.social. Even more gratifying was seeing my trainees recognized for their work earlier in the day. #GlobalHealth.
Reposted by Nathan Lo
As expected, Canada has lost its measles-free status because of the long-running outbreak there. With it goes the #measles elimination status of the entire zone of the Americas, the only division of the #WHO to ever have achieved measles elimination. www.statnews.com/2025/11/10/m...
Canada loses measles elimination status — as does the entire Americas region
Canada has formally lost its measles elimination status, the country’s public health agency announced, triggering the loss of that status throughout all of the Americas.
www.statnews.com
November 10, 2025 at 2:49 PM
As expected, Canada has lost its measles-free status because of the long-running outbreak there. With it goes the #measles elimination status of the entire zone of the Americas, the only division of the #WHO to ever have achieved measles elimination. www.statnews.com/2025/11/10/m...
Reposted by Nathan Lo
The Erosion of Harm Reduction | New England Journal of Medicine www.nejm.org/doi/full/10....
The Erosion of Harm Reduction | NEJM
The U.S. administration has continuously chipped away at public health interventions
addressing substance use disorders and the opioid crisis, including vital harm-reduction
activities.
www.nejm.org
November 8, 2025 at 1:29 PM
The Erosion of Harm Reduction | New England Journal of Medicine www.nejm.org/doi/full/10....
Reposted by Nathan Lo
One analytical model shows that, as of November 5th, the dismantling of U.S.A.I.D. has already caused the deaths of 600,000 people, two-thirds of them children. https://newyorkermag.visitlink.me/jUzNSc
The Shutdown of U.S.A.I.D. Has Already Killed Hundreds of Thousands
The short documentary “Rovina’s Choice” tells the story of what goes when aid goes.
newyorkermag.visitlink.me
November 6, 2025 at 9:00 PM
One analytical model shows that, as of November 5th, the dismantling of U.S.A.I.D. has already caused the deaths of 600,000 people, two-thirds of them children. https://newyorkermag.visitlink.me/jUzNSc
Reposted by Nathan Lo
We’re thrilled to welcome Dr. Paul Bollyky, MD, DPhil, as the new Division Chief of Infectious Diseases and Geographic Medicine at Stanford Medicine.
Dr. Bollyky has been a dedicated member of our division, bringing deep expertise and a vision for advancing infectious disease research and care.
Dr. Bollyky has been a dedicated member of our division, bringing deep expertise and a vision for advancing infectious disease research and care.
October 31, 2025 at 10:32 PM
We’re thrilled to welcome Dr. Paul Bollyky, MD, DPhil, as the new Division Chief of Infectious Diseases and Geographic Medicine at Stanford Medicine.
Dr. Bollyky has been a dedicated member of our division, bringing deep expertise and a vision for advancing infectious disease research and care.
Dr. Bollyky has been a dedicated member of our division, bringing deep expertise and a vision for advancing infectious disease research and care.
Reposted by Nathan Lo
Well reported story on the PBS News Hour about science cuts and the ongoing and potential brain drain.
www.youtube.com/watch?v=yLvO...
Thanks to Terrance Tao and other scientists at various career stages for having the courage to speak out.
Watch and share!
1/7
www.youtube.com/watch?v=yLvO...
Thanks to Terrance Tao and other scientists at various career stages for having the courage to speak out.
Watch and share!
1/7
Top researchers consider leaving U.S. amid funding cuts: 'The science world is ending'
YouTube video by PBS NewsHour
www.youtube.com
October 30, 2025 at 11:36 AM
Well reported story on the PBS News Hour about science cuts and the ongoing and potential brain drain.
www.youtube.com/watch?v=yLvO...
Thanks to Terrance Tao and other scientists at various career stages for having the courage to speak out.
Watch and share!
1/7
www.youtube.com/watch?v=yLvO...
Thanks to Terrance Tao and other scientists at various career stages for having the courage to speak out.
Watch and share!
1/7
Reposted by Nathan Lo
NEW @nejm.org: We synthesized 511 recent studies on Covid-19, RSV & flu vaccines for 2025-26. With federal advisory processes disrupted, clinicians & the public need rigorous, independent evidence synthesis.
Here's what we found: 🧵
www.nejm.org/doi/full/10....
Here's what we found: 🧵
www.nejm.org/doi/full/10....
Updated Evidence for Covid-19, RSV, and Influenza Vaccines for 2025–2026 | NEJM
Changes in the vaccine advisory process in the United States have disrupted immunization
guidance, which reinforces the need for independent evidence review to inform decisions
regarding immunizati...
www.nejm.org
October 30, 2025 at 4:12 PM
NEW @nejm.org: We synthesized 511 recent studies on Covid-19, RSV & flu vaccines for 2025-26. With federal advisory processes disrupted, clinicians & the public need rigorous, independent evidence synthesis.
Here's what we found: 🧵
www.nejm.org/doi/full/10....
Here's what we found: 🧵
www.nejm.org/doi/full/10....
Check out this analysis of vaccine data in @nejm.org by @jakescottmd.bsky.social and colleagues!
Updated peer-reviewed evidence supports the safety and effectiveness of immunizations against Covid-19, RSV, and influenza during the 2025–2026 season @nejm.org @jakescottmd.bsky.social @stanforddeptmed.bsky.social
www.nejm.org/doi/full/10....
www.nejm.org/doi/full/10....
Updated Evidence for Covid-19, RSV, and Influenza Vaccines for 2025–2026 | NEJM
Changes in the vaccine advisory process in the United States have disrupted immunization
guidance, which reinforces the need for independent evidence review to inform decisions
regarding immunizati...
www.nejm.org
October 30, 2025 at 1:41 AM
Check out this analysis of vaccine data in @nejm.org by @jakescottmd.bsky.social and colleagues!
Reposted by Nathan Lo
Thank you, @cidrap.bsky.social, for covering our new @nejm.org review of Covid-19, RSV, and influenza immunizations.
Check it out: cidrap.umn.edu/covid-19/meta-analysis-covid-rsv-flu-vaccines-fall-provides-sea-data-showing-efficacy-safety
Check it out: cidrap.umn.edu/covid-19/meta-analysis-covid-rsv-flu-vaccines-fall-provides-sea-data-showing-efficacy-safety
Meta-analysis of COVID, RSV, flu vaccines for fall provides 'sea of data' showing efficacy, safety
cidrap.umn.edu
October 30, 2025 at 1:37 AM
Thank you, @cidrap.bsky.social, for covering our new @nejm.org review of Covid-19, RSV, and influenza immunizations.
Check it out: cidrap.umn.edu/covid-19/meta-analysis-covid-rsv-flu-vaccines-fall-provides-sea-data-showing-efficacy-safety
Check it out: cidrap.umn.edu/covid-19/meta-analysis-covid-rsv-flu-vaccines-fall-provides-sea-data-showing-efficacy-safety
Reposted by Nathan Lo
H-1B visa–sponsored physicians are twice as prevalent in rural counties and nearly 4 times as common in high-poverty areas, highlighting the potential harm of rising visa costs to health care access.
ja.ma/47Iw84h
ja.ma/47Iw84h
October 29, 2025 at 3:30 PM
H-1B visa–sponsored physicians are twice as prevalent in rural counties and nearly 4 times as common in high-poverty areas, highlighting the potential harm of rising visa costs to health care access.
ja.ma/47Iw84h
ja.ma/47Iw84h
Reposted by Nathan Lo
The thing about outbreaks of infectious diseases is that you can only hide them for so long. Time literally is containment.
And the whistle always blows once people start to die ( in this instance babies). This is why we have public health surveillance and reporting.
www.npr.org/sections/sho...
And the whistle always blows once people start to die ( in this instance babies). This is why we have public health surveillance and reporting.
www.npr.org/sections/sho...
Louisiana officials waited months to warn public of whooping cough outbreak
After a whooping cough outbreak killed two infants, Louisiana health officials waited months to officially alert physicians or do public outreach. That's not the typical public health response.
www.npr.org
October 28, 2025 at 2:57 PM
The thing about outbreaks of infectious diseases is that you can only hide them for so long. Time literally is containment.
And the whistle always blows once people start to die ( in this instance babies). This is why we have public health surveillance and reporting.
www.npr.org/sections/sho...
And the whistle always blows once people start to die ( in this instance babies). This is why we have public health surveillance and reporting.
www.npr.org/sections/sho...
Reposted by Nathan Lo
The National Academy of Medicine elected 90 new members, including 10 international, including our chair,
@euanashley.bsky.social in recognition of his efforts to help lay the foundation for the use of the human genome in medicine. Congratulations, Euan!
Read more: med.stanford.edu/news/all-new...
@euanashley.bsky.social in recognition of his efforts to help lay the foundation for the use of the human genome in medicine. Congratulations, Euan!
Read more: med.stanford.edu/news/all-new...
October 27, 2025 at 10:06 PM
The National Academy of Medicine elected 90 new members, including 10 international, including our chair,
@euanashley.bsky.social in recognition of his efforts to help lay the foundation for the use of the human genome in medicine. Congratulations, Euan!
Read more: med.stanford.edu/news/all-new...
@euanashley.bsky.social in recognition of his efforts to help lay the foundation for the use of the human genome in medicine. Congratulations, Euan!
Read more: med.stanford.edu/news/all-new...
Reposted by Nathan Lo
My husband Dean's nice paper in @jama.com open. Detention is a setup for disease transmission. jamanetwork.com/journals/jam...
Vaccine-Preventable Infectious Diseases Within US Immigration Detention Centers
This case series examines epidemiological patterns of 3 vaccine-preventable diseases within US Immigration and Customs Enforcement facilities.
jamanetwork.com
October 24, 2025 at 1:46 PM
My husband Dean's nice paper in @jama.com open. Detention is a setup for disease transmission. jamanetwork.com/journals/jam...
Reposted by Nathan Lo
Reposted by Nathan Lo
Come check out our work at #IDweek2025
October 21, 2025 at 1:06 AM
Come check out our work at #IDweek2025
Reposted by Nathan Lo
Reposted by Nathan Lo
Mass administration of azithromycin to children younger than 5 years has been reported to decrease child mortality. In the LAKANA trial, limited to infants 1 to 11 months of age in Mali, azithromycin did not reduce infant or child mortality. Full trial results: nej.md/3W9ykeD
#MedSky #PedSky
#MedSky #PedSky
October 16, 2025 at 7:07 PM
Mass administration of azithromycin to children younger than 5 years has been reported to decrease child mortality. In the LAKANA trial, limited to infants 1 to 11 months of age in Mali, azithromycin did not reduce infant or child mortality. Full trial results: nej.md/3W9ykeD
#MedSky #PedSky
#MedSky #PedSky
Reposted by Nathan Lo
Just here to remind everyone that while the federal government is shutdown, all study sections at the NIH are currently on hold. Another blow to science and to early career scientists like myself with young labs and research groups. Very hard to remain positive about this career path.
October 14, 2025 at 3:34 PM
Just here to remind everyone that while the federal government is shutdown, all study sections at the NIH are currently on hold. Another blow to science and to early career scientists like myself with young labs and research groups. Very hard to remain positive about this career path.