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Matthew Kuehnert

@mjkuehnert

MD, FACP, FIDSA. USPHS (ret). Infectious disease doc. Professor of Medicine. Retweets not endorsement, opinions own.

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19.12.2024
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Latest posts by Matthew Kuehnert @mjkuehnert

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Kaposi Sarcoma–Associated Herpesvirus Infection and ... This report describes Kaposi sarcoma in an organ ...

Big deal in #transplant ID πŸ‘‡πŸ»

Growing problem HHV-8 (Kaposi's sarcoma) transmitted via organ transplantation

Screening?

"Limited commercial availability of KSHV assays, particularly serology, has hindered surveillance and tracking of donor-derived infections"

#idsky

www.cdc.gov/mmwr/volumes...

05.03.2026 18:38 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Romania finds two masseuses with leprosy, first cases in 40 years Romania said it had found two masseuses with leprosy at a spa in the northwestern city of Cluj, the European Union state's first confirmed cases of the disease in more than 40 years.

Leprosy is treatable, but requires months of antibiotics,similar to tuberculosis.
www.reuters.com/business/hea...

12.12.2025 21:46 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Emerging Infectious Diseases - CDC Emerging Infectious Diseases is a peer-reviewed, monthly journal published by the Centers for Disease Control and Prevention (CDC). It offers global health professionals the latest scientific informat...

The Nov issue of EID has published!

Theme is vectorborne diseases, but also a nod to zoonotic infections (Grandma Moses farm scene on cover), an issue theme to come

Tickborne pathogens in blood donors, emerging Rickettsia in dogs, transmission WNV in Paris, to name a few
wwwnc.cdc.gov/eid

#idsky

11.12.2025 16:32 πŸ‘ 9 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Serological and molecular characterization of hepatitis E virus and co-infections during the 2014 Biratnagar outbreak in Nepal - BMC Infectious Diseases Introduction Hepatitis E virus (HEV) is a leading cause of acute viral hepatitis in South Asia, frequently causing waterborne outbreaks. Despite the recognized past and potential future epidemic burde...

Although we tend to think about it less in the US, Hep E is the leading cause of *acute* hepatitis worldwide.

- associated with wild boar/undercooked pork
- more severe in pregnant people. - can cause chronic hepatitis in immunocompromise #IDSky

bmcinfectdis.biomedcentral.com/articles/10....

23.10.2025 13:24 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Our new issue is out, and includes research on

🦠 surveillance of iGAS in European countries and factors associated with severe iGAS and death in children & adolescents

πŸ“ˆ how COVID-19 modelling supported public health decisions in Europe

Read it here πŸ”— www.eurosurveillance.org/content/euro...

23.10.2025 14:39 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
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Chagas Disease, an Endemic Disease in the United States Chagas Disease, an Endemic Disease in the United States

Increasing evidence of T. cruzi parasites in the United States in triatomine insects, domestic animals, wildlife, and humans challenges Chagas’ nonendemic label in US.

Autochthonous human cases have been reported in 8 states… #IDSky

wwwnc.cdc.gov/eid/article/...

01.09.2025 14:39 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Chagas Disease, an Endemic Disease in the United States Chagas Disease, an Endemic Disease in the United States

Chagas disease is endemic in the United States. Full stop.

"Labeling the US as non–Chagas disease–endemic perpetuates low awareness and underreporting"

#IDSky #MedSky #Chagas

wwwnc.cdc.gov/eid/article/...

04.09.2025 16:51 πŸ‘ 9 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

Rabies in an unmanaged cat colony.

No human cases but a large investigation.

Cat colonies aren't going away so we should manage them better. The amount of $ spent for this investigation could have covered a lot of spay/neuter/vaccination.
www.wormsandgermsblog.com/2025/08/arti...

28.08.2025 13:16 πŸ‘ 52 πŸ” 16 πŸ’¬ 2 πŸ“Œ 1
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ChatGPT tends to ignore retractions on scientific papers Study finds the chatbot doesn’t acknowledge concerns with problematic studies

β€œPeople are relying too much on these text-extruding machines, and that will corrupt the scientific record”

cen.acs.org/policy/publi...

26.08.2025 10:46 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Two Cases of Autochthonous West Nile Virus Encephalitis, Paris, France, 2025 Two Cases of Autochthonous West Nile Virus Encephalitis, Paris, France, 2025

"..our findings highlight spread of WNV into northern France during the mosquito season. This new area of WNV circulation is a concern for physicians managing infected patients but also for blood, cell, or organ donations for which qualified donors are needed.."
#idsky
wwwnc.cdc.gov/eid/article/...

20.08.2025 16:07 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I would take this very seriously if contacted. Rabies can have a very long incubation time before symptoms develop. Post exposure prophylaxis administered in a timely manner is very effective.

16.08.2025 02:21 πŸ‘ 218 πŸ” 109 πŸ’¬ 7 πŸ“Œ 1
1. David Ackerly (UC Berkeley)

While his most-cited work is on leaf size and SLA, he also wrote explicitly about plasticity in leaf traits, including shape, in the context of ecological strategies.

Example: Ackerly (1997), β€œAllocation, leaf display, and growth in fluctuating light environments: A comparative study of deciduous and evergreen species” (Oecologia). This emphasizes how plasticity in leaf traits mediates adaptation to light.

1. David Ackerly (UC Berkeley) While his most-cited work is on leaf size and SLA, he also wrote explicitly about plasticity in leaf traits, including shape, in the context of ecological strategies. Example: Ackerly (1997), β€œAllocation, leaf display, and growth in fluctuating light environments: A comparative study of deciduous and evergreen species” (Oecologia). This emphasizes how plasticity in leaf traits mediates adaptation to light.

Just in case there was any doubt, ChatGPT 5.0 still makes up completely random citations that don't exist and should not be used for literature search.

16.08.2025 06:57 πŸ‘ 970 πŸ” 267 πŸ’¬ 27 πŸ“Œ 23
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Without standard definition, long COVID remains a puzzle

The number of symptoms included in the studies ranged from 9 to 44.

www.cidrap.umn.edu/c...

13.08.2025 20:27 πŸ‘ 22 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0
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Study highlights antifungal use in US hospitals

Data from 412 US hospitals from 2018 through 2023 show 4.5% of patients received an antifungal, a finding researchers say warrants a specific focus on antifungal stewardship.

www.cidrap.umn.edu/a...

13.08.2025 21:19 πŸ‘ 11 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
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Monthly updates: Seasonal surveillance in humans and animals in 2025 for West Nile virus Monthly updates with the latest reports on West Nile virus cases in Europe.

🦟 West Nile virus in Europe

As summer progresses, IT, EL, RO, BG & FR have reported 163 locally acquired human cases of #WestNileVirus infection so far this year.

πŸ“Š This is above the 10-year average for this point in the season, but far below the same period in record years of 2024 & 2018.

13.08.2025 15:57 πŸ‘ 17 πŸ” 9 πŸ’¬ 1 πŸ“Œ 2

Earlier this year… β€œIn this case report, we present a young adult with a history of chronic e-cigarette use diagnosed with pulmonary blastomycosis. The patient’s young age, lack of underlying health conditions… along with ambiguous imaging findings, posed a significant diagnostic challenge.”

13.08.2025 12:52 πŸ‘ 8 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1
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Emerging Infectious Diseases - CDC Emerging Infectious Diseases is a peer-reviewed, monthly journal published by the Centers for Disease Control and Prevention (CDC). It offers global health professionals the latest scientific informat...

August issue of Emerging Infectious Diseases is now online!

Theme is "Mpox and other viral diseases."

Articles on spillover events, microsporidiosis acquired in the Sea of Galilee, and Mpox.

Our cover: "The Pockmarked Face of the Comte de Mirabeau", the scars of smallpox.

wwwnc.cdc.gov/eid/

24.07.2025 17:28 πŸ‘ 3 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0
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ECDC releases risk assessment with actions needed to address spike in hepatitis A cases ECDC has issued a Rapid Risk Assessment in response to a multi-country outbreak of hepatitis A in the EU/EEA.

#JustPublished!

Rapid Risk Assessment: Multi-country outbreak of #hepatitisA in the EU/EEA.

The spike in cases has been reported across Austria, Czechia, Hungary & Slovakia

Read full report here: bit.ly/3HOlL4E
and our press release here: bit.ly/4kNULAQ

#IDsky #EpiSky #MedSky

19.06.2025 21:28 πŸ‘ 32 πŸ” 22 πŸ’¬ 3 πŸ“Œ 1
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Emerging Infectious Diseases - CDC Emerging Infectious Diseases is a peer-reviewed, monthly journal published by the Centers for Disease Control and Prevention (CDC). It offers global health professionals the latest scientific informat...

July issue of Emerging Infectious Diseases is online!
wwwnc.cdc.gov/eid/

Theme is Spirochetes and other bacteria

Two unusual case reports on the "great imitator" syphilis.
Also featured: Mycoplasma phocimorsus human infection from a bear, Borrelia in flying foxes, mice as model for leptospirosis.

26.06.2025 15:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thanks for the shout out to EID!

26.06.2025 15:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Outbreak of Ceftriaxone-Resistant <em>Salmonella enterica</em> Serovar Typhi, Bangladesh, 2024 Ceftriaxone-Resistant <em>Salmonella</em> Typhi, Bangladesh

One ceftriaxone-resistant #typhoid case last year set us on a path that is now live on Emerging Infectious Diseases.
47 cases in months, resistance rose from 0 to 5%. We spoke with patients, sequenced samples. 4.3.1.2.B1 lineage+blaCTX-M-15 on pCROB1. #AMR #PublicHealth
wwwnc.cdc.gov/eid/article/...

23.06.2025 16:19 πŸ‘ 3 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0

Feline #sporotrichosis:
"Asymptomatic carriers hinder sporotrichosis control efforts by delaying diagnosis and treatment. Screening all contacts of confirmed cases is essential to minimize the risk for transmission"

10.06.2025 03:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Measles virus diverged phylogenetically from rinderpest bovine virus. I did not know that.

01.06.2025 22:50 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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πŸ“šπŸ’™πŸŒŽπŸ§° #Bookdrop #booksky #epidemic

#The-American-Plague: The Untold Story of Yellow Fever, The Epidemic That Shaped Our History. a single summer in Memphis alone, it cost more lives than the Chicago fire, the San Francisco earthquake, and the Johnstown flood combined

os5.mycloud.com/action/share...

30.05.2025 13:21 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Yellow fever breakthrough infections after yellow fever vaccination: a systematic review and meta-analysis Yellow fever breakthrough infections documented in literature are rare, and not necessarily more common 10Β years or more after primary yellow fever vaccination. This finding suggests that a single dos...

Given #YellowFever vaccination seems to have become topical, this article might be of interest.

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

31.05.2025 11:15 πŸ‘ 14 πŸ” 9 πŸ’¬ 0 πŸ“Œ 1

Human immunity has to "want" to oscillate seasonally also...

31.05.2025 13:06 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Scientists report first known cases of #tularemia in beluga whales

The long distances that whales often travel could further spread the disease, increasing exposure to people and wildlife, the authors say.

www.cidrap.umn.edu/t...

Photo: Linnie / Flickr cc

23.05.2025 16:25 πŸ‘ 12 πŸ” 7 πŸ’¬ 2 πŸ“Œ 0
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Emerging Infectious Diseases - CDCCenters for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting Peoplehome4expandexpandexpandexpandexpandexpandedit_01 fil... Emerging Infectious Diseases is a peer-reviewed, monthly journal published by the Centers for Disease Control and Prevention (CDC). It offers global health professionals the latest scientific informat...

EID's June issue is published!
Theme is #vectorborne infections.

Article topics include rickettsia in Cambodia, oropouche in Brazil, babesiosis in Italy, tularemia in Alaskan whales (!) and much more. #idsky

wwwnc.cdc.gov/eid/

30.05.2025 20:04 πŸ‘ 6 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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Iowa, Nebraska announce first measles cases

Iowa's patient is an unvaccinated adult, and Nebraska's is a vaccinated child who had not traveled outside the state.

www.cidrap.umn.edu/m...

27.05.2025 19:21 πŸ‘ 40 πŸ” 27 πŸ’¬ 4 πŸ“Œ 1