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Brian Dawes

@brian-dawes

Infectious Disease physician, virologist, epidemiologist @Stanford. Studying emerging viruses, global health, One Health.

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Latest posts by Brian Dawes @brian-dawes

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Senegal reports rapid rise in human Rift Valley fever cases: 140 confirmed cases, 18 deaths In a follow-up on the Rift Valley fever (RVF) situation in Senegal, the Ministry of Health reports in an update today, the outbreak has now reached 140 confirmed human cases and 18 deaths.
10.10.2025 20:26 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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CDC employees standing up and walking out in light of the mass shootings, firings, and *waves hands in the air* everything else.

#USAnotRFK

Lets gooooo

28.08.2025 18:59 πŸ‘ 13252 πŸ” 3341 πŸ’¬ 173 πŸ“Œ 181
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Do NOT allow them to rewrite history with disinformation. #COVID vaccines worked remarkably well and allowed us to come out of a global pandemic. A picture is worth a thousand words.

28.08.2025 14:43 πŸ‘ 451 πŸ” 180 πŸ’¬ 5 πŸ“Œ 4
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Breaking News: Read three top CDC officials' resignation emails. The end of an era.

Enough is enough. The health of the country is in danger. Read our resignation letters: insidemedicine.substack.com/p/breaking-n...

28.08.2025 03:38 πŸ‘ 5265 πŸ” 2404 πŸ’¬ 282 πŸ“Œ 192
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Uganda: Rift Valley fever case reported in Mbale district The Uganda Ministry of Health (MOH) reported a confirmed human fatal Rift Valley fever (RVF) case in the eastern Ugandan district of Mbale on August 8.
21.08.2025 22:37 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

This is really cool but also a cautionary tale about zooanthroponotic transmission at the interface between human and animals. Without surveillance, viruses can hop back and forth and evolve in unpredictable ways

18.07.2025 19:18 πŸ‘ 63 πŸ” 21 πŸ’¬ 2 πŸ“Œ 0
Tania attends to a patient in the dengue ward at Mugda Hospital in Dhaka, Bangladesh, on 20 September 2023.

Tania attends to a patient in the dengue ward at Mugda Hospital in Dhaka, Bangladesh, on 20 September 2023.

Dengue, Zika, chikungunya & yellow fever are on the rise, putting 5.6B+ people at risk.

Once limited to tropical & subtropical climates, Aedes mosquitoes are spreading to new regions, increasing the risk of outbreaks.

New WHO guidelines covering all four mosquito-borne diseases πŸ”— bit.ly/3Tu6BnJ

10.07.2025 13:53 πŸ‘ 116 πŸ” 42 πŸ’¬ 2 πŸ“Œ 5
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Seroprevalence of Dengue, Zika, and Chikungunya Viruses in Humans and Co-located Macaques in Thailand and Cambodia Arbovirusesβ€”short for "arthropod-borne viruses"β€”are transmitted to humans and animals by infected arthropods.

Seroprevalence of Dengue, Zika, and Chikungunya Viruses in Humans and Co-located Macaques in Thailand and Cambodia

βœ… Just Accepted
#IDSky

25.05.2025 18:45 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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SA universities face funding crisis as US federal agencies freeze research grants | News24 An investigation into the impact of the US aid freeze on research funding to South African universities has found that 44 programmes worth R2.5 billion were affected.

A not very happy Friday. CERI had 6 NIH grants canceled, which will impact operations, surveillance and response to epidemics. We are working to try to minimize disturbance but not easy with 6 grants terminated at the same moment. A crisis is unfolding in SA www.news24.com/southafrica/...

23.05.2025 05:29 πŸ‘ 88 πŸ” 50 πŸ’¬ 3 πŸ“Œ 5
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The spread of Mpox in Sierra Leone is unlike anything we have ever seen - and we have been keeping an eye on this bug in the region for >15 years.

Given geographical spread, 50/50 men vs women, this is no "sexual network".

This could be the next one.

clt.npha.gov.sl/outbreak.aspx

22.05.2025 21:56 πŸ‘ 430 πŸ” 209 πŸ’¬ 32 πŸ“Œ 19
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Trump freezes β€˜gain of function’ pathogen research ― threatening all US virology, critics say An executive order suspends the use of federal funds for certain experiments on pathogens with pandemic potential. Critics say low-risk science could be affected too.

β€œThis is what I was expecting β€” an executive order banning gain-of-function research but defined in such a way that it bans all virology research,” says @ggronvall.bsky.social.

Yup.

www.nature.com/articles/d41...

08.05.2025 10:20 πŸ‘ 164 πŸ” 91 πŸ’¬ 6 πŸ“Œ 4
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🧡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...

24.04.2025 15:40 πŸ‘ 399 πŸ” 209 πŸ’¬ 13 πŸ“Œ 35
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Researcher of 1918 flu virus takes over NIAID Jeffery Taubenberger becomes acting director of NIH’s second largest institute

Credit where it’s due, Jeff Taubenberger is a great choice for the head of NIAID. He’s been at NIAID for years & is a terrific scientist who has done pivotal work on influenza virus, most notably reconstructing 1918.

www.science.org/content/arti...

25.04.2025 22:28 πŸ‘ 452 πŸ” 87 πŸ’¬ 10 πŸ“Œ 11
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The spatiotemporal ecology of Oropouche virus across Latin America: a multidisciplinary, laboratory-based, modelling study Our data suggest that climatic factors are major drivers of OROV spread and were potentially exacerbated during 2024 by extreme weather events. OROV glycoprotein reassortants, but not individual OROV ...

Oropouche seropositivity much higher than thought, up 30% in some populations. Reasons for increased recent spread multifactorial, climate events important predictors. Huge collaborative project led by Jan Felix Drexler.

Now online @thelancetinfdis.bsky.social

www.thelancet.com/journals/lan...

15.04.2025 10:26 πŸ‘ 10 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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Novel human coronavirus in an infant patient with pneumonia, Republic of Korea Coronaviruses (CoVs) pose a significant threat to public health, causing a wide spectrum of clinical manifestations and outcomes. Beyond precipitating global outbreaks, Human CoVs (HCoVs) are frequ...

Another zoonotic (alpha) coronavirus. Closely related to the rodent virus AcCoV-JC34 that contains a putative furin cleavage site. www.tandfonline.com/doi/full/10....

02.04.2025 23:48 πŸ‘ 103 πŸ” 36 πŸ’¬ 3 πŸ“Œ 3
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Hantavirus Claims Three Lives in Mammoth Lakes, California | ALT 98.7 | LA Local News Three people in Mammoth Lakes, California, have died from hantavirus, a rare virus spread by deer mice. The illness also claimed the life of Betsy Arakawa, Gene Hackman's wife. Fewer than 100 cases ha...

Hantavirus claims 3 more lives in Mammoth Lakes, Mono County, California. The rare, rodent-borne illness has gained attention after the death of Betsy Arakawa, wife of actor Gene Hackman, in New Mexico.
alt987fm.iheart.com/featured/la-...

05.04.2025 16:39 πŸ‘ 29 πŸ” 13 πŸ’¬ 0 πŸ“Œ 1
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Trump cuts damage global efforts to track diseases, prevent outbreaks Disease surveillance programs worldwide are suddenly in limbo

"A project to track and contain menacing animal viruses across seven countries, from avian influenza in poultry to Lassa virus in rodents, ended with a single email."
www.science.org/content/arti...

26.03.2025 12:33 πŸ‘ 60 πŸ” 29 πŸ’¬ 1 πŸ“Œ 1
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Trump administration to end funding for child vaccines in developing countries, New York Times reports U.S. President Donald Trump's administration plans to end American financial support for Gavi, an organization that helps buy vaccines for children in developing countries and scale back efforts to combat malaria, the New York Times reported on Wednesday.

Gavi has helped vaccinate over 1.1 billion children, saving 17 million lives. Every $1 the U.S. invests returns $54 in health & economic gains. These vaccines stop outbreaks before they reach our shores. Without them, Kansas is just as vulnerable as Kinshasa.
www.reuters.com/business/hea...

27.03.2025 14:05 πŸ‘ 55 πŸ” 26 πŸ’¬ 2 πŸ“Œ 0
graph of NIH basisfor new drugs

graph of NIH basisfor new drugs

A pie graph worth keeping in mind as the NIH budget plummets jamanetwork.com/journals/jam... for 356 new FDA drugs approved

23.03.2025 16:17 πŸ‘ 4029 πŸ” 1646 πŸ’¬ 60 πŸ“Œ 85
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Opinion | Musk Said No One Has Died Since Aid Was Cut. That Isn’t True. (Gift Article) A journey through the front lines of global poverty shows that when the world’s richest men slash aid for the world’s poorest children, the result is sickness, starvation and death.

Elon Musk says that no one has died because he slashed humanitarian aid. I went to South Sudan to check if that's true. It's not. Meet Peter, Achol and Evan, ages 10, 8 and 5. The reckless actions of the world's richest men are killing the world's poorest kids www.nytimes.com/interactive/...

15.03.2025 11:31 πŸ‘ 2535 πŸ” 1173 πŸ’¬ 83 πŸ“Œ 116
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A Dark Day for Our Country I'm not going to sugarcoat it. Today was a bad day for our country – and for the Democratic Party.

I'm not going to sugarcoat it.

Today was a bad day for our country – and for the Democratic Party.

Let's talk about it.

open.substack.com/pub/schiffno...

14.03.2025 22:58 πŸ‘ 8256 πŸ” 1779 πŸ’¬ 1205 πŸ“Œ 180
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New bat paper from our lab. Small changes in bats' diet can decrease influenza shedding and alter cytokine expression. doi.org/10.1098/rspb... #bats #influenza #iav photo credit: JosΓ© Gabriel MartΓ­nez-Fonseca

19.02.2025 13:38 πŸ‘ 22 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0
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Here’s how to share sensitive leaks with the press Thinking about securely leaking information to news organizations? This guide will show you how.

Sharing these resources for no particular reason.

1. Here’s how to share sensitive leaks with the press via @freedom.press: freedom.press/digisec/blog...
2. Become a whistleblower via @wbaidlaw.bsky.social: whistlebloweraid.org/become-a-whi...

Stay safe out there.

29.01.2025 18:44 πŸ‘ 161 πŸ” 109 πŸ’¬ 4 πŸ“Œ 5

A Q&A of our recent work on Rift Valley Fever virus stability in milk. Main take home is this is a potential threat in endemic regions and that (super unsurprisingly) pasteurization remains critically important to public health!

26.02.2025 22:48 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Here we boiled for 1 minute. Typical pasteurization protocols use lower temps, (60C for 30 minutes or 72C for 15 seconds which we also showed inactivated RVFV), so I imagine shorter boiling would work. We just didn't do shorter times to conclusively show that.

26.02.2025 00:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Understanding the Resurgence of Yellow Fever: New Insights from Brazil's Largest Outbreak - Global Health A new study published inΒ Frontiers in MedicineΒ sheds further light on the risk factors associated with severe yellow fever and in-hospital mortality during this critical period. TheΒ LaBeaud LabΒ at Sta...

New publication studies Brazil's 2016-2018 #YellowFever outbreak, the largest in the country's history, identifying risk factors for severe disease, & underscores the importance of multidisciplinary collaboration in confronting infectious disease threats. globalhealth.stanford.edu/research/und...

24.02.2025 19:01 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

The next step in trying to dismantle Infectious Diseases research - dismantle @niaidnews.bsky.social - should surprise no one that this a R-led proposal.

An unmitigated disaster for diagnosis, treatment and prevention of pathogens that affect everyone in the US

www.congress.gov/bill/119th-c...

22.02.2025 19:55 πŸ‘ 233 πŸ” 100 πŸ’¬ 13 πŸ“Œ 15
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Rift Valley fever virus remains infectious in milk stored in a wide range of temperatures Rift Valley fever virus (RVFV) is a zoonotic arbovirus widely distributed across Africa and the Arabian Peninsula, which causes devastating epidemics affecting humans as well as ruminant livestock. The epidemiology of RVFV is difficult to disentangle, as it is transmitted to humans via mosquitos or direct contact with infected animals. Among these direct exposures are milking ruminants and drinking fresh milk, which have been firmly established as risk factors for RVFV exposure. However, no studies to date have addressed the stability of infectious RVFV in milk.

Rift Valley fever virus remains infectious in milk stored in a wide range of temperatures

βœ… Just Accepted
#IDSky

22.02.2025 19:45 πŸ‘ 13 πŸ” 6 πŸ’¬ 1 πŸ“Œ 1
Photo of the United States with a color code for states that have rallies confirmed, in progress, needing a leader, or no leader.

Photo of the United States with a color code for states that have rallies confirmed, in progress, needing a leader, or no leader.

🚨 WANT TO HELP US STAND UP FOR SCIENCE? 🚨

Here's a little update on where we're currently at with the planning process!

Is your state red or grey & you want to see an event happen? Fill out our volunteer form or share with a friend! airtable.com/app4h5wUssMG...

#standupforscience2025

22.02.2025 05:19 πŸ‘ 374 πŸ” 291 πŸ’¬ 21 πŸ“Œ 48
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Climate Change and Coccidioidomycosis This JAMA Insights discusses the increased risk of coccidioidomycosis due to climate change and the importance of clinicians, patients, and health systems being educated about the disease to ensure accurate identification and optimal care for patients.

Out today: a brief piece in @jama.com, targeted primarily toward raising awareness among clinicians, on rising incidence of #coccidioidomycosis ("valley fever" illness caused by Coccidioides fungus) in western U.S. amid a warming #climate. jamanetwork.com/jour...

20.02.2025 19:26 πŸ‘ 81 πŸ” 29 πŸ’¬ 4 πŸ“Œ 5