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iSpy LIFE

@ispylifenetwork.bsky.social
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iSpy LIFE: Taking on Streptococcus pyogenes (Strep A)! Uniting 28 researchers from 11 nations. Led by Imperial College London & University of California San Diego. Funded by Leducq Foundation. Follow us for updates! #iSpyLIFE #StrepA #Streptococcus

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Katharine Collins @kat-a-collins.bsky.social · 17/07/2026
📣Exciting announcement 📣 The First Global Strep A Vaccine Conference Call for abstracts will open soon! 🌏Venue update: Kuala Lumpur, Malaysia, first week of February 2027 📝Abstract submissions open 30 July 2026. #GSAVConference2027 Read the full announcement here ⬇️ lnkd.in/eiu95fXm
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Katharine Collins @kat-a-collins.bsky.social · 26/05/2026
Success isn't guaranteed, and it won't happen in isolation. We're proud to be working alongside Leducq Foundation, researchers, clinicians and advocates who have carried this field for years. Read more: coefficientgiving.org/research/ann...
coefficientgiving.org
Announcing the Strep A Vaccine Fund
Strep A causes over 600,000 deaths per year — a toll comparable to HIV/AIDS and malaria — but attracts a tiny fraction of the research funding. Today, we're launching the Strep A Vaccine Fund: a multi...
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francis-middleton.bsky.social @francis-middleton.bsky.social · 05/05/2026
We’re excited to announce our latest paper @natcomms.nature.com: ‘CXCR3 is associated with T-cell-induced heart damage in acute rheumatic fever.’ We found evidence for T cell migration out of the blood and into heart valves during inflammatory rheumatic fever. www.nature.com/articles/s41...
nature.com
CXCR3 is associated with T-cell-induced heart damage in acute rheumatic fever - Nature Communications
Acute rheumatic fever (ARF) is a serious sequela of Strep A infection, for which a diagnostic biomarker is still lacking. Here, the authors demonstrate that CXCR3 directs T cells to heart valves in pa...
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JCI insight @insight.jci.org · 11/01/2026
Acute rheumatic fever is an autoinflammatory disease @njmoreland.bsky.social, @rhcmcg.bsky.social report widespread antibody heterogeneity, yet identify a protein expressed in cardiac muscle as an immunodominant autoantigen: doi.org/10.1172/jci....
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iSpy LIFE @ispylifenetwork.bsky.social · 08/01/2026
Great work from @nvansorge.bsky.social & colleagues on invasive Strep A. They found that giving preventative antibiotics to all household contacts cut secondary infection risk by more than four times. A simple policy change that could save lives. jamanetwork.com/journals/jam... #StrepA #MedSky
jamanetwork.com
Secondary Invasive Group A Streptococcal Infection After Prophylaxis Policy Change
This cohort study estimates the risk of invasive group A streptococcus (iGAS) before and after the implementation of a policy in the Netherlands that expanded antibiotic prophylaxis to household conta...
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Grampospath @grampospath.bsky.social · 15/10/2025
Definitely worth a read and raises all sorts of questions about how quickly we become vulnerable as a population if we aren’t immune/immunised.👇
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Imperial Medicine @imperialmed.bsky.social · 17/10/2025
Death rates from serious #StrepA infections remain worryingly high, new research led by Prof Shiranee Sriskandan shows. Study found no big difference between two key strains, but highlights the need for faster diagnosis & prevention. academic.oup.com/cid/advance-...
academic.oup.com
Mortality Among Patients With Invasive Group A Streptococcal Infections Caused by the M1UK Lineage: A Retrospective Cohort Study in England and Wales
Emm1 invasive Strep A incurs a high case fatality rate. In this national cohort, 24.4% of those with M1UK iGAS died, though this was not different from anc
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tom-parks.bsky.social @tom-parks.bsky.social · 15/10/2025
Why did severe #StrepA infections in children increase after the pandemic? Our new @jamanetworkopen paper suggests COVID restrictions delayed immunity development in young children. tiny.cc/63vt001
tiny.cc
Immunity to S pyogenes and Common Respiratory Viruses at Age 0 to 4 Years
This cross-sectional study examines changes in immunity to Streptococcus pyogenes and other common respiratory pathogens among young children in 10 European countries after the introduction of nonphar...
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Infinity Bio Inc @infinitybioinc.bsky.social · 08/09/2025
A new study by @thushan-desilva.bsky.social @alexjkeeley.bsky.social & colleagues provides a framework for future Streptococcus pyogenes (Strep A) vaccine development by examining the natural acquisition of humoral immunity! www.nature.com/articles/s41... #Microbiology #Pathogen #VaccineDevelopment
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Alex Keeley @alexjkeeley.bsky.social · 08/08/2025
# StrepA kills >500,000 people a year via: Invasive Strep A (e.g UK 2022) and Rheumatic heart disease (RHD). RHD occurs where there’s: +++ Strep A skin infections +++ bacterial diversity +++ poverty Children the world over would benefit from a safe effective vaccine. 3/
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Alex Keeley @alexjkeeley.bsky.social · 08/08/2025
🧵 Our paper out today in @naturemedicine.bsky.social www.nature.com/articles/s41... On development of #StrepA #Immunity over life course in #TheGambia raising hope for #vaccines on the horizon 1/ #Immunosky #IDsky #MicroSky #globalhealth.
nature.com
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ᐯIᑕTOᖇ ᑎIᘔET, ᗰᗪ @nizet.bsky.social · 07/08/2025
Please share my 1 min video on the importance of maintaining NIH funding of infectious diseases and drug discovery research vs rising antibiotic resistance Drastic budget cuts harm our health and imperil the next generation of scientists More @UCSanDiego “Behind Every Breakthrough” bit.ly/3FlXQs3
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Michael Marks @drmichaelmarks.bsky.social · 06/07/2025
Latest from @mrcunitgambia.bsky.social #StrepA group. Show clinical decision rules developed elsewhere (mostly HIC) have poor performance in Gambia & molecular tests detect far more #StrepA than culture. Given burden of RhD in Africa we urgently need better & affordable tests for #StrepA diagnosis
journalofinfection.com
Evaluating clinical decision rules and rapid diagnostic tests for the diagnosis of Streptococcus pyogenes pharyngitis in Gambian children: a diagnostic accuracy study
Accurate diagnosis of Streptococcus pyogenes (S. pyogenes) pharyngitis is imperative in high rheumatic heart disease-burden countries. We aimed to assess the diagnostic accuracy of two rapid diagnosti...
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Nikki Moreland @njmoreland.bsky.social · 22/07/2025
This deep dive into the clinical phenotype of rheumatic fever highlights extreme diversity in presenting symptoms. An important observation from the START study, and highlights why better diagnostic tests are needed 🧪 @annapralph.bsky.social @rhcmcg.bsky.social bmjopen.bmj.com/content/15/7...
bmjopen.bmj.com
Diverse diagnostic and management approaches for acute rheumatic fever in Australia and New Zealand: findings of a prospective clinical study
Objectives To describe diagnostic and management characteristics of acute rheumatic fever (ARF) among participants in the ‘Searching for a Technology-Driven Acute Rheumatic Fever Test’ study, in order...
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ᐯIᑕTOᖇ ᑎIᘔET, ᗰᗪ @nizet.bsky.social · 11/06/2025
Part of the recently completed PhD thesis of outstanding UC San Diego Medical Scientist Training Program student Alex Stream exploring Strep A molecular pathogenesis and vaccinology journals.asm.org/doi/10.1128/...
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iSpy LIFE @ispylifenetwork.bsky.social · 05/06/2025
Great discussions happening at the #iSpyNetworkMeeting #LISSSD2025! Collaborating around #Strep research. Huge thanks to the Leducq Foundation for making it all possible! @ispyexplore.bsky.social @ispylifenetwork.bsky.social @grampospath.bsky.social @thushan-desilva.bsky.social
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iSpy LIFE @ispylifenetwork.bsky.social · 05/06/2025
Great to see everyone dialled in for Joe Kado's talk on "Diagnosing in Low Resource Settings" at #LISSSD2025 in Brisbane! So many #Strep enthusiasts in one place. Big thanks to @ispyexplore.bsky.social & @ispylifenetwork.bsky.social for putting this on! #Lancefield #iSpyNetworkMeeting
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Stuart Campbell @sc345.bsky.social · 03/06/2025
More cool penicillin data - A/Prof J Bennett presents NZ data for subcut BenPen for RHD/ARF 💉 Penicillin >20ng/mL for 56d & >10ng/mL for 70d 💉 Worked better in ⬆️ BMI 💉 No breakthrough infections 😊 Highly accepted - only 1 pt switched back to IM BenPen #LISSSD25 #idsky
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Stuart Campbell @sc345.bsky.social · 03/06/2025
A/Prof Laurens Manning presents a human challenge study looking to define penicillin MIC to prevent strep throat. 💊 ~9ng/mL penicillin (lower then standard threshold 20ng/mL) prevents clinical strep throat and systemic inflammation as measured by CRP. #LISSSD25 #idsky
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Stuart Campbell @sc345.bsky.social · 05/06/2025
Prof M Good & A/Prof M Pandey close #LISSSD25 thanking all the local committee, scientific advisory committee (led by Dr T Lamagni & @joshosowicki.bsky.social), presenters, and delegates. Prof A Steer announces #LISSSD28 is to be held in 📌 Limassol, Cyprus 🇨🇾 2028
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Stuart Campbell @sc345.bsky.social · 05/06/2025
I said no more #LISSSD25 posts but forgot a major highlight! Most sessions started w/ a patient lived experience video, and you can see them all @ lisssd2025.org/patient-stories Looking after patients during thier illnesses is v. stressful so it's great to hear their experiences when recovered.
lisssd2025.org
Patient Stories — LISSSD 2025
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Stuart Campbell @sc345.bsky.social · 05/06/2025
Last of the #LISSSD25 presentations is Prof Victor Nizet imploring the community to think like streptococci in these times of authoritarianism USA anti-science 🍇 Evade host immunity (cont to do work) 🍇 Form biofilms (network) 🍇 Colonise diverse hosts (expand skill sets) #strep #idsky
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Stuart Campbell @sc345.bsky.social · 04/06/2025
Another AUROC: L Carlton presents a possible ARF biomarker id'd from a series of bead array exp using START cohort samples. Most accurate candidate TRAFIP with AUROC 0.79 solo or upto 0.845 in combo w/ other biomarkers. Coming to a revised-revised Jones criteria? #LISSSD25 #idsky
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Stuart Campbell @sc345.bsky.social · 04/06/2025
PhD cand. J Iwasaki talks about mechanism behind strep throat recurrence. 👅 ~15% strep throat relapse 👅 Relapse strains can persist in ⬆️ [pen] 👅 Intracellular persistence in strep intracell. comm. [SIC] 👅 SICs are L-switch'd to lack cell wall hence recur post Pen Rx #LISSSD25 #clinmicro
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Stuart Campbell @sc345.bsky.social · 05/06/2025
Dr K Gibney flys the flag for 🦘 clin trials by 🎺 ISAAC 🔎 at Abx prophylaxis of close iGAS contacts (enrolling soon) STRAP 🔎 backbone Abx, adjunctive Abx, and IVIg (enrolling 2026ish) Only enrolling in Aus for now but looking for int. collab. #LISSSD25 #idsky #clinicaltrials #strep
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Stuart Campbell @sc345.bsky.social · 01/06/2025
Prof S Sriskandan finishes w/ sobering data from the '22 UK GAS outbreak probably driven by nonimmune unexposed birth cohorts and spread by aerosolised hydrophobic GAS. Rapidly fatal - Dx of GAS microbiologically conf. post mortem in 50% of peads deaths so window of opportunity very small
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Stuart Campbell @sc345.bsky.social · 02/06/2025
Prof A Steer speaks about the progress to a Strep A vaccine, and highlights the current Emm and non-emm candidates as well as the challenges in Strep A. Steer highlights new human challenge models, published trial complication guidelines and monitoring, and building momenum. #LISSSD25 #idsky
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Stuart Campbell @sc345.bsky.social · 02/06/2025
Prof de Silva & Dr Keeley speak on Strep A epi & immunity in the Gambia. 🗝️ Hyperendemicity of Strep A 🗝️ Index infections not explained by household contacts 🗝️ Early life immunity develops <2 y/o 🗝️ Ab response to carriage & infection 🗝️ ?protective immunity from SLO, SpyAD, SpyCEP #LISSSD25 #IDsky
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Stuart Campbell @sc345.bsky.social · 03/06/2025
@earmitage.bsky.social leverages the SpyCATS platform to investigate WASH facilities on Strep A infection incidence ⬇️ w/ handwashing, freq. clothes changing, good wound care, access to soap. Limited by no wealth data & small sub-group but options for interventions identified. #LISSSD25
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Stuart Campbell @sc345.bsky.social · 04/06/2025
Prof N Moreland from NZ speaks through the ARF perturbed immune response in ARF. 🌍 All strep A serotypes assoc w/ ARF in NZ 🌍 Increased IgG3 ab phenotpes 🌍 Immune infiltration valves incl plasma cells. 🌍 DIifferences in immue activation in acute & chronic RHD #LISSSD25
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Stuart Campbell @sc345.bsky.social · 04/06/2025
Start cohort bmjopen.bmj.com/content/11/9/e053720
bmjopen.bmj.com
Searching for a technology-driven acute rheumatic fever test: the START study protocol
Introduction The absence of a diagnostic test for acute rheumatic fever (ARF) is a major impediment in managing this serious childhood condition. ARF is an autoimmune condition triggered by infection ...
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nvansorge.bsky.social @nvansorge.bsky.social · 04/06/2025
📣💥Thrilled to share this preprint from our PhD student Yao Shi on the identification of a conserved motif in Strep suis cell wall glycan for possible vaccine protection. 👏 to team of dedicated international collaborators immunogenicity.https://www.biorxiv.org/content/10.1101/2025.06.02.656523v1
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Grampospath @grampospath.bsky.social · 03/06/2025
Congratulations to Tom Parks the new President of the Lancefield Society and Committee members ! #LISSSD2025 @ispylifenetwork.bsky.social
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Grampospath @grampospath.bsky.social · 02/06/2025
Evening kick off off at #Lancefield #LISSSD2025 in Brisbane for all #Strep enthusiasts @ispylifenetwork.bsky.social @ispyexplore.bsky.social
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Grampospath @grampospath.bsky.social · 25/04/2025
Points to a specific but I think meaningful immunity gap against two of the pathogens tested - strep A and RSV in 3-4 y olds. Age specific increment in anti Strep antibodies as you might hope. Just less in those post 2020. Preprint of interest to many of us in @ispylifenetwork.bsky.social
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tom-parks.bsky.social @tom-parks.bsky.social · 25/04/2025
Why did invasive #strepA infections increase in young children after the pandemic? In this new @imperialinfect.bsky.social PREPRINT *not peer-reviewed* we look at antibody responses to #strepA and resp viruses in European children before and after the pandemic: www.medrxiv.org/cgi/content/...
medrxiv.org
Immunity to Streptococcus pyogenes and Common Respiratory Viruses at Age 0-4 Years after COVID-19 restrictions: A Cross-Sectional Study
Importance The upsurge in invasive disease caused by Streptococcus pyogenes among children reported in several European countries during 2022-2023 has not been fully explained. Objective To test the ...
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Grampospath @grampospath.bsky.social · 18/04/2025
Pleased to share @chemo_king’s paper explaining why spycep does what it does ! www.sciencedirect.com/science/arti...
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Alex Keeley @alexjkeeley.bsky.social · 07/04/2025
Great thread and paper: Where #StrepA burden greatest frequent lineage replacement seen. Interesting points: "vaccines without broad cross-lineage protection may also lead to S. pyogenes lineage replacement." "need to do better surveillance from carriage and non-invasive disease"
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Tom Yates @tomayates.bsky.social · 18/03/2025
NEW PAPER with @tom-parks.bsky.social and @petedodd24.bsky.social in @ofidjournal.bsky.social Our tool can estimate extent to which misallocation of person time will result in spurious or optimistic estimates of intervention effects We find benefits of IVIG in STSS have likely been exaggerated
academic.oup.com
Quantifying potential immortal time bias in observational studies in acute severe infection
We developed a tool to quantify the impact of misallocation of person time, then used it to demonstrate that published observational studies have likely ov
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Alex Keeley @alexjkeeley.bsky.social · 15/02/2025
📢 Preprint - not peer-reviewed🤞: Development of #immunity to #StrepA in The Gambia. We assessed IgG to conserved and M protein antigens across the life course, exploring association with protection against infection: www.medrxiv.org/content/10.1... #IDSky #Immunosky
medrxiv.org
Early life serological profiles and the development of natural protective humoral immunity to Streptococcus pyogenes in a high burden setting
Streptococcus pyogenes leads to 500,000 deaths annually; many due to rheumatic heart disease in low-income settings. Limited understanding of natural protective immunity to S. pyogenes hinders vaccine...
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Tiago Costa @tcostalab.bsky.social · 20/02/2025
With @jrpenades.bsky.social, we challenged Google AI co-scientist to generate hypotheses. In just 2 days, it recapitulated our unpublished, experimentally confirmed mechanism for how cf-PICIs spread between bacterial species! @imperialcollegeldn.bsky.social tinyurl.com/3byyaeh2
tinyurl.com
AI mirrors experimental science to uncover a novel mechanism of gene transfer crucial to bacterial evolution
AI models have been proposed for hypothesis generation, but testing their ability to drive high-impact research is challenging, since an AI-generated hypothesis can take decades to validate. Here, we ...
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 21/02/2025
Week 7 of my Bayes stats course, now deep in multilevel models, correlated effects, centered and non-centered parameterizations, diag(σ)LZ ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn (link to lectures: github.com/rmcelreath/s...)
meme with escalating multilevel priors, from fixed to simple random to correlated random effectsComplex generalized linear multilevel model with an image of a monster emerging from the ocean behind it
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Imperial Medicine @imperialmed.bsky.social · 22/01/2025
A new frontier in #flu immunity? 🦠 Led by @cchiu.bsky.social, the GERMINATE study will use human challenge studies to find out how #respiratory immunity is built, which could transform flu #vaccines and protect severe disease. www.imperial.ac.uk/news/260093/... @imperialcollegeldn.bsky.social
imperial.ac.uk
New study to look at how people develop resistance to flu | Imperial News | Imperial College London
An international project into flu immunity could help develop better medications and vaccines to prevent severe disease.
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ᐯIᑕTOᖇ ᑎIᘔET, ᗰᗪ @nizet.bsky.social · 13/02/2025
𝗣𝗿𝗼𝘃𝗼𝗰𝗮𝘁𝗶𝘃𝗲: 𝗗𝗶𝗮𝗯𝗲𝘁𝗲𝘀 𝗳𝘂𝗲𝗹𝘀 𝗔𝗠𝗥 Staphylococcus aureus evolves antibiotic resistance rapidly in diabetic mice, as hyperglycemia aids the expansion and takeover of resistant mutants VISA strains have a large fitness defect in control mice but not in diabetic mice ➡️ www.science.org/doi/10.1126/...
science.org
Diabetes potentiates the emergence and expansion of antibiotic resistance
Diabetic infections are a reservoir for the emergence and proliferation of antibiotic resistance in Staphylococcus aureus.
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Michael Marks @drmichaelmarks.bsky.social · 17/12/2024
Excited to say that in collaboration with colleagues in Australia @latrobeuni.bsky.social we got NHMRC funding to use SpyCATS cohort to build state of the art #StrepA transmission models. Hope to ultimately better understand household transmission & help target interventions in high burden settings.
thelancet.com
Streptococcus pyogenes carriage and infection within households in The Gambia: a longitudinal cohort study
S pyogenes carriage and infection are common in The Gambia, particularly in children. Most events are non-household acquisitions, but skin carriage and pyoderma have an important role in S pyogenes household transmission and bidirectional transmission between skin and pharynx occurs.
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Grampospath @grampospath.bsky.social · 16/01/2025
📣Research Technician job alert! Needed to support our #iSpyLIFE field work and #strep biobanking. www.imperial.ac.uk/jobs/search-...
imperial.ac.uk
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
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tom-parks.bsky.social @tom-parks.bsky.social · 10/01/2025
Is there still rheumatic fever in the UK? bit.ly/3Py0X1P Join our @rcpch.bsky.social webinar next Friday to hear the answer as well as get a refresher on the clinical features and how we make or refute the diagnosis. #strepA #GAS #RHD #IDSky #PaedsSky #PaedsIDSky
bit.ly
RCPCH-BPSU Webinar: Don’t forget rheumatic fever!
In this webinar, Dr Tom Parks and the panel will discuss the BPSU study and provide a refresher on Strep A disease and post-infectious disease at a time when UK children are at increased risk.
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Tom Yates @tomayates.bsky.social · 10/01/2025
NEW PREPRINT! Enjoyed working with @tom-parks.bsky.social and @petedodd24.bsky.social on immortal time bias In its simplest form, ITB results from misallocation of person time, i.e. pre treatment time in intervention group being counted as time on treatment www.medrxiv.org/content/10.1... [1/n]
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iSpy LIFE @ispylifenetwork.bsky.social · 20/12/2024
Did you know our immune response to Strep A changes throughout our "LiFE"? iSpy LIFE is studying these changes to develop better prevention strategies for all ages, including new vaccines and treatments. #iSpyLIFE #StrepA #ImperialCollegeMedicine #PublicHealth www.imperial.ac.uk/news/251477/...
imperial.ac.uk
Global research network to combat deadly Strep A infections | Imperial News | Imperial College London
Imperial and US scientists are spearheading a multi-institution network to research bacterial cause of sepsis and heart damage in children.
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iSpy LIFE @ispylifenetwork.bsky.social · 18/12/2024
What secrets does Strep A hold across the "LiFE" cycle? The iSpy Life network is on a mission to find out. Join us on a journey as we explore the complexities of Strep A immunity! #StrepResearch #iSpyLife #Streptococcus #StrepA #GAS #StreptococcusPyogenes #unveilingthemystery #Imperialcollege
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