Kevin Messacar MD PhD's Avatar

Kevin Messacar MD PhD

@kmess44.bsky.social

Professor of Pediatrics and Infectious Diseases Physician-Scientist #diagnosticstewardship #acuteflaccidmyelitis #enterovirus #EVD68 #EVA71 #HPeV Views my own https://profiles.ucdenver.edu/display/229779

147 Followers  |  327 Following  |  2 Posts  |  Joined: 21.08.2025
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Posts by Kevin Messacar MD PhD (@kmess44.bsky.social)

Images in Clinical Medicine 
Subacute Sclerosing Panencephalitis after Measles Infection 

Panels A and B: MRI of the head showing edema and restricted diffusion in the frontal lobes that involved the cortical ribbon and white matter and extended into the corpus callosum.

Images in Clinical Medicine Subacute Sclerosing Panencephalitis after Measles Infection Panels A and B: MRI of the head showing edema and restricted diffusion in the frontal lobes that involved the cortical ribbon and white matter and extended into the corpus callosum.

A 7-year-old boy was brought to a hospital with a 3-month history of cognitive deterioration and seizures. He had contracted measles at 7 months of age while living in an area where the infection is endemic. Read the full case details: nej.md/4qY4Ihk

#MedSky #NeuroSky #IDSky

01.03.2026 14:01 β€” πŸ‘ 29    πŸ” 18    πŸ’¬ 1    πŸ“Œ 6
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As cases of a rare, deadly infection rise, doctors worry fewer teens will get vaccinated Under Robert F. Kennedy Jr.’s guidance, the CDC no longer recommends routine vaccination to protect against meningococcal disease.

Deaths from bacterial meningitis will rise if fewer teens are vaccinated, doctors warn. After the CDC recommended that all adolescents get vaccinated against meningococcal disease in 2005, cases of the potentially deadly illness plummeted in the U.S. by 90%.
www.nbcnews.com/health/healt...

12.01.2026 05:54 β€” πŸ‘ 67    πŸ” 26    πŸ’¬ 4    πŸ“Œ 3
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Interesting new paper on value of serological surveillance for reconstructing epidemics: www.thelancet.com/journals/lan...

And accompanying comment by @scauchemez.bsky.social: www.thelancet.com/journals/lan...

09.01.2026 21:46 β€” πŸ‘ 18    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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As cases of a rare, deadly infection rise, doctors worry fewer teens will get vaccinated Under Robert F. Kennedy Jr.’s guidance, the CDC no longer recommends routine vaccination to protect against meningococcal disease.

It’s typical for different countries to have different vaccine schedules, experts told me for this explainer on why the CDC, until Monday, universally recommend led the MenACWY vaccine. www.nbcnews.com/health/healt...

11.01.2026 23:00 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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As cases of a rare, deadly infection rise, doctors worry fewer teens will get vaccinated Under Robert F. Kennedy Jr.’s guidance, the CDC no longer recommends routine vaccination to protect against meningococcal disease.

β€œBacterial meningitis can progress quickly, causing the brain to swell and limbs to develop gangrene and sepsis, and can kill within 24 hours… β€œIt’s even more important now that we get meningococcal vaccines out to people given that we are seeing a spike in this Y strain,” Messacar said.”

11.01.2026 17:04 β€” πŸ‘ 33    πŸ” 18    πŸ’¬ 3    πŸ“Œ 1
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Learn about our Clinical Translational Research Centers (CTRCs) Discover how the CCTSI’s Clinical Translational Research Centers (CTRCs) support high-quality clinical research across Colorado. From specialized research nursing and exercise facilities to core lab…

Our Clinical Translational Research Centers (CTRCs) provide dedicated, research-only space and resources like core lab and nutrition services to support your #clinical research studies!

@kmess44.bsky.social, @cupediatrics.bsky.social, @drhigginsmd.bsky.social, @cudeptofmedicine.bsky.social

03.12.2025 16:33 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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1/ πŸš€ Exciting news: we’ve just released the first Nextclade dataset for Enterovirus D68 (EV-D68), developed in collaboration with the European Non-Polio Enterovirus Network (ENPEN).

πŸ‘‰πŸ» Check out the dataset on Nextclade! clades.nextstrain.org?dataset-name...

#EVD68 #Enterovirus #OpenData

20.11.2025 12:49 β€” πŸ‘ 54    πŸ” 16    πŸ’¬ 1    πŸ“Œ 3

Depends on presentation, there is significant overlap

25.10.2025 01:19 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Now is the time to integrate serology into routine infectious disease surveillance Syndromic and virological surveillance are essential for epidemic intelligence, which can be defined as the capacity to effectively identify, monitor, understand, and forecast infectious disease outbr...

Accompanying commentary:
#IDSky

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

07.08.2025 15:21 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Early registration ends October 1 for our Pediatric Infectious Disease Fall Update
πŸ—“οΈWed November 5 in person & online
✏️MOC & CME
🦠Updates on vaccines, measles, COVID, influenza, sinusitis, pneumonia and skin & soft tissue infections
ce.childrenscolorado.org/content/27th...
@cupediatrics.bsky.social

23.09.2025 19:10 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
26th Annual Pediatric Infectious Diseases Update | Children's Hospital Colorado Continuing Education

Join our 1-day Infectious Diseases Conference!
When: Nov 5
Where: Virtual or in-person at Children's Hospital Colorado
What: Updates on ACIP, vaccines & vaccine hesitancy; mgmt of measles, UTI, SSTI, CAP, sinusitis, tick illnesses, and more!
Register now: ce.childrenscolorado.org/content/26th...

19.09.2025 17:42 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Dr. Kevin Messacar stands in front of a blue backdrop.

Dr. Kevin Messacar stands in front of a blue backdrop.

Why did viruses like flu and RSV reemerge after the #COVID19 pandemic? A recent study from our #InfectiousDisease experts led by principal investigator @kmess44.bsky.social reveals insights about viruses, our immune system and how to prepare for the future: prn.to/4lztth8

05.09.2025 15:35 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Now is the time to integrate serology into routine infectious disease surveillance Syndromic and virological surveillance are essential for epidemic intelligence, which can be defined as the capacity to effectively identify, monitor, understand, and forecast infectious disease outbr...

New comment

Now is the time to integrate serology into routine infectious disease surveillance

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

07.08.2025 09:21 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Thanks Jess! I have no idea what I am doing on here... even less so than Twitter. I'd love to follow more #IDSky so please follow/reach out if you are interested in #pedsID #diagnosticstewardship #enterovirus #EVD68 #EVA71 #acuteflaccidmyelitis #encephalitis #meningitis #pandemicpreparedness

21.08.2025 19:59 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Thanks Jess! I have no idea what I am doing on here... even less so than Twitter. I'd love to follow more #IDSky so please follow/reach out if you are interested in #pedsID #diagnosticstewardship #enterovirus #EVD68 #EVA71 #acuteflaccidmyelitis #encephalitis #meningitis #pandemicpreparedness

21.08.2025 19:59 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Dynamics of endemic virus re-emergence in children in the USA following the COVID-19 pandemic (2022–23): a prospective, multicentre, longitudinal, immunoepidemiological surveillance study In this study, we captured immunological evidence of endemic virus re-emergence in children following lifting of pandemic NPIs, which revealed high rates of exposure to endemic respiratory pathogens i...

This study confirms what we all saw - a surge in endemic respiratory viruses after COVID precautions lifted, and demonstrates the utility of immunoepidemiological surveillance…

#IDSky

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

07.08.2025 15:20 β€” πŸ‘ 24    πŸ” 18    πŸ’¬ 2    πŸ“Œ 1

Authors noted:
🟒 ⬆️Ab titres supports the hypothesis of ⬆️susceptible population of young children building up during the pandemic infection pause
🟒 subsequent ⬆️Ab in population-level immunity after
NPIs lifted
πŸŸ’β¬†οΈAb likely reflects ⬆️viral circulation after NPIs lifted➑️virus re-emergence

11.08.2025 02:39 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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Dynamics of endemic virus re-emergence in children in the USA following the COVID-19 pandemic (2022–23): a prospective, multicentre, longitudinal, immunoepidemiological surveillance study.
h/t to @cidrap.bsky.social www.thelancet.com/journals/lan...

11.08.2025 02:32 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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Dynamics of endemic virus re-emergence in children in the USA following the COVID-19 pandemic (2022–23): a prospective, multicentre, longitudinal, immunoepidemiological surveillance study In this study, we captured immunological evidence of endemic virus re-emergence in children following lifting of pandemic NPIs, which revealed high rates of exposure to endemic respiratory pathogens in a large group of seronegative, predominantly younger, children. This study demonstrates the feasibility and utility of immunoepidemiological surveillance to enable more precise and accurate modelling of pathogen circulation dynamics to predict and prepare for future waves of disease.

Dynamics of endemic virus re-emergence in children in the USA following the COVID-19 pandemic (2022–23): a prospective, multicentre, longitudinal, immunoepidemiological surveillance study

Yes the infection pause or immune gap is measurable.

www.thelancet.com/jo...
1/10

10.08.2025 10:21 β€” πŸ‘ 25    πŸ” 11    πŸ’¬ 3    πŸ“Œ 1
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Immunologic study shows rebound of other viruses after COVID measures lifted

The authors showed how a relatively small serosurveillance scheme could complement traditional surveillance, enhancing epidemic understanding and forecast modeling.

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

08.08.2025 18:42 β€” πŸ‘ 16    πŸ” 8    πŸ’¬ 2    πŸ“Œ 1
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Dynamics of endemic virus re-emergence in children in the USA following the COVID-19 pandemic (2022–23): a prospective, multicentre, longitudinal, immunoepidemiological surveillance study In this study, we captured immunological evidence of endemic virus re-emergence in children following lifting of pandemic NPIs, which revealed high rates of exposure to endemic respiratory pathogens i...

New Research:

Dynamics of endemic virus re-emergence in children in the USA following the COVID-19 pandemic (2022–23): a prospective, multicentre, longitudinal, immunoepidemiological surveillance study

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

07.08.2025 09:21 β€” πŸ‘ 1    πŸ” 3    πŸ’¬ 2    πŸ“Œ 1