European Society for Immunodeficiencies (ESID)

We’re thrilled to join the Bluesky community! This is the official channel of the European Society for Immunodeficiencies (ESID), where we’ll be sharing updates on the latest projects, community news, events, and more. Follow, connect and take part in the conversation! 💬 #PID #Immunology

We cannot believe it has been 10 days since #ESID2026! Missing it already? Relive some moments with us. More than 2,670 delegates from more than 98 countries joined us in Maastricht and online, connecting, exchanging knowledge and building the IEI community. Thank you for being part of it!

🤝 Some of the best things in a career come from the people you meet along the way. Prof. Boris Karanovic looks back on four years leading the PID Care in Development Working Party. His message: get involved. 👉 Submit your case and join the Working Party. #ESID2026

🎓 Prof. Clara Franco Jarava reflects on four years leading ESID’s Education Working Party. In her own words: “It’s a lot of work, but it really opens your doors to many opportunities.” 👉 Take an active part in ESID. There are always opportunities to join us.

Behind every ESID Meeting are the people who bring it to life. Thank you to our ESID 2026 Social Media Ambassadors: Selket 🇧🇪, Gökcan 🇹🇷, María Pilar 🇦🇷 and Marcus 🇧🇷! 🙌 Thank you for your time, enthusiasm and for sharing #ESID2026 through your eyes.

🎥 #ESID2026 may be over, but what we learned is still with us. Our community shares the key learnings they took home from Maastricht: new ideas, practical insights and fresh perspectives for their daily practice. What did you take home from ESID 2026?

🤝 With the Closing Ceremony, we brought four inspiring days of #ESID2026 to a close. Thank you to more than 2,600 delegates from more than 90 countries. Our community keeps growing, and that reflects how much has been achieved in the field of IEI. See you in Basel for #ESID2028! ➡️

ESID 2026 has come to an end! Selket Delafontaine 🇧🇪 and Filippo Consonni 🇮🇹 look back on this year’s meeting, sharing their key learnings and favourite moments. ¡ Four days of learning, collaboration and a great atmosphere. Thank you for being part of it! #ESID2026

☀️ Our final day of #ESID2026 is here! Four days of science, ideas, questions and conversations have brought us to the final day of the Meeting but there’s still plenty to explore. One last morning. One more opportunity to learn, connect and be part of the IEI community. Let’s make it count!

Plenary Session 03: Host-Pathogen interaction is underway! 📍 Join us in Auditorium I #ESID2025

🙌 Good morning, Maastricht! Day 3 of #ESID2026 is here. Explore the IEI from every angle, from host-pathogen interactions and immune dysregulation to atopy, allergy and new therapies, with e-poster discussions all day. 🤝 Let us continue the conversation!

🙌 Day 2 of #ESID2026 is a wrap! 🔬 From early diagnosis to innovative therapies, patient wellbeing and emerging technologies, today's sessions covered every stage of the IEI journey, bringing new approaches to IEI care together in one place 👉 See you tomorrow at #ESID2026!

👉E-Poster discussion in progress: Great research and great questions. #ESID2026

Missed a session? The ESID 2026 app has you covered. With AI Summaries, you can catch up on a session you could not attend in minutes and keep hold of the key takeaways. 👉 Download the ESID 2026 app and try it now: https://bit.ly/4zlRsrp #ESID2026

We continue the day with Parallel Session 02: Diagnostic Challenges. 👉 Join us in South Hall

☀️ Day 2 of #ESID2026 is here! A new day of science, discussion and discovery awaits in Maastricht. Today’s programme takes us from immune metabolism and genetics to diagnostics, autoinflammation and cell and gene therapy, bringing new approaches to IEI care. Ready for another day of #ESID2026?

🤝 Ever wanted to ask the people behind ESID a question? Today at 13:00, during the lunch break, the ESID Board is waiting for you at Booth #26 for a Meet and Greet. Discover what the society is working on, and connect with the leadership of the ESID community. 👉 Drop by and say hello! #ESID2026

🏆 Prof. Anders Fasth received the ESID Honorary Lifetime Achievement Award at #ESID2026! From 1984 to 2011, he led paediatric immunology and stem cell transplantation at Queen Silvia Children's Hospital, devoting his career to primary immunodeficiencies. Thank you for a lifetime of commitment!

🙌Today in Maastricht, at the IEI Course: Spot, Screen, Support, healthcare professionals outside immunology spent a full day learning from IEI experts how to spot these patients earlier. 🤝 When specialists and front-line colleagues learn together, patients get diagnosed sooner.

🎁 We have a gift waiting for you! Come to the ESID booth (#26), show your badge and pick it up. It is for the first to arrive, so do not wait. 👉 See you at the booth! #ESID2026

✨ A warm welcome from our Meeting Chair, Mirjam van der Burg, to the whole ESID community here in Maastricht! The rooms are full, the energy is high and ESID 2026 is under way. Four days of science, collaboration and connection are ahead of us. Enjoy ESID 2026! 🙌

📱 Want to know more about what is on in the hall? Scan the hall programme code with the ESID 2026 app and get the full details of the programme in seconds. Check what is coming up without leaving the room. 👉 Download the app and give it a try: https://bit.ly/4yL9B1R #ESID2026

🚀 We start the first session of the IEI Course: Spot. Screen. Support. Learning to spot IEI earlier starts now!

Full house at Educational Day! 👉 You can still join us in South Hall #ESID2026

🎉 Welcome to the 22nd Biennial Meeting of ESID in Maastricht! Over four days, we'll explore where science meets clinical practice, true to this year's theme: Translational Immunology Beyond Boundaries. Get ready for discovery and connection with the IEI community. #ESID2026 starts now!

Join the Juniors Networking Event after the Welcome Reception, whether it's your first ESID Meeting or you're already part of the community. 👉 Reserve your place: https://bit.ly/3TQY6GO

@esidsociety.bsky.social Registry ROCKS - come to the Educational Session and the Working party morning session in Maastricht this week

⏳ 2 days to go, and it is time to download the #ESID2026 app! Explore speakers and abstracts, connect with fellow delegates, join Q&A and voting, and catch up on missed sessions with AI Summaries. 👉 Download it now: https://bit.ly/4B0dWjp

Small actions, big impact. Delegates can make #ESID2026 more sustainable with easy choices: 🚴 Walk, cycle or take the free bus ♻️ Bring a reusable bottle and recycle your badge 📱 Skip the printouts, use the app Discover more: https://bit.ly/3TKkIZz

⏳ 4 days to #ESID2026, and here is a perk worth knowing about. Delegates travel free by bus across Maastricht, supported by MECC Maastricht. Show your digital badge (the e-ticket in the ESID 2026 app) or your physical badge to the driver. 👉Full details: https://bit.ly/4jERaqO

⏳ Only 5 days to #ESID2026! Not registered yet? There is still time to join the IEI community, in Maastricht or On Demand. Four days. Two ways to join. One ESID community. 👉 https://bit.ly/4hHlVJ1

One evening. New connections. The ESID Juniors Networking Event brings together early-career colleagues for a relaxed evening of conversation beyond the sessions. Familiar face or new, this is where it begins. 👉 Reserve your spot: https://bit.ly/4rLcdtR #ESID2026

What do NK cells do, and why do we have them? Twenty-five years later, that question has reshaped how we understand immune deficiencies. At #ESID2026, Dr. Jordan Orange shares the clinical and biological story, Fri 16 Oct, 14:00. 👉 https://bit.ly/3TWqibs

🩺 Coming up: ESID Juniors Clinical Cases Webinar: Treatment of IEI - 6 Oct, 16:00 CET! Featuring two clinical case presentations from ESID Junior members and Q&A session with expert Austen Worth. 👉 Register: bit.ly/3W6EiQw #ESID #ESIDJuniors #IEI

📚 Coming on Monday at 15:30 CET! Join the ESID Grand Round "How I Publish my Research on Inborn Errors of Immunity" with Fabian Hauck, Hamoud Al-Mousa, Amit Rawat, Rori Williams & Carolina Prando. 💬 Expert discussion + Q&A with Jean-Laurent Casanova. Register and join us on Monday: bit.ly/4xY8YAS

⏳ It is officially October, and #ESID2026 is almost here! In just two weeks, the IEI community comes together in Maastricht for four days of science, exchange and connection. Maastricht is waiting. 👉 https://bit.ly/4xVBEKN

📢 Final call! Is 14 October on your calendar yet? The Inborn Errors of Immunity course is not a lecture; it is a day built around real cases: recognising signs, first-line tests, and knowing when to refer. Places are going fast, secure yours: 👉 https://bit.ly/4rnhnvP #ESID2026

What if the line separating immunodeficiencies and metabolic diseases isn't as clear cut as we believe? Dr. Andrew Patterson's work reveals many metabolism-linked genes are essential for T cell function, a crossover between two fields long treated as separate. 👉 Join him: https://bit.ly/3V7KyY0

Turn your time in Maastricht into credit for your career. At #ESID2026, earn up to 21.5 CME credits, recognised by the UEMS-EACCME®. These credits do not stay in Europe, they convert to equivalent credits in the USA, Canada, and other countries. 👉 https://bit.ly/4haNNGF

🔬 ESID Grand Round | ‘How I Treat’: DADA2 Join us tomorrow, Tuesday at 16:30 CET for a session on DADA2, moderated by Isabelle Meyts & Marco Gattorno, featuring five expert speakers. 🎙️ Roberta Caorsi | Federica Barzaghi | Lisa Ehlers | Hasan Hashem | Chiara Rigamonti Register: bit.ly/3Ts2ADC

Could the answer to earlier IEI diagnosis already be sitting in your health records? At #ESID2026, Dr. Jacques G. Rivière explores this in his talk "Translating IEI Disease Patterns into the Language of EHR," Plenary Session 5. 👉 Join us in Maastricht: https://bit.ly/4hioOA4

Discover selected IEI research published in top impact-factor journals during August 2026 through the latest ESID Journal Watch, covering articles on disease mechanisms, treatment and reviews. 🎧 Prefer to listen? An audio summary is also available! 👉 Read: bit.ly/4hqZ7NR 🎙️ Listen: bit.ly/4rwuL10

Every T cell runs on tiny internal power plants. What happens when they break down? Prof. Ping-Chih Ho studies exactly that: how mitochondrial dynamics control immune responses, and how disruption can drive immune deficiency. 👉Join him at Plenary Session 01, #ESID2026. https://bit.ly/4ruGsW3

🏆 What if your research didn't just get presented, it got recognized? N&G 2027 Best Abstract Awards: €5,000 per category (Infancy "The First 1,000 Days" & Obesity), presented in Vienna. 👉 Submit your abstract for a chance to win: https://bit.ly/4y8y80z Deadline: 3 Nov 2026 #NG2027

One focused day of practical training. The Inborn Errors of Immunity: Spot, Screen, Support course helps healthcare and lab professionals recognise suspected IEI and know when to refer. CME accreditation is being applied for this course. 👉 Places limited, secure yours: https://bit.ly/4hxV2Za

🚨 Today is the last day to save up to €100 on your #ESID2026 registration. Are you in? Join the IEI community in Maastricht to discover the latest advances and be part of the conversations shaping immunology and patient care. ⏰ From tomorrow, onsite rates apply: https://bit.ly/4xKK20i

One focused day of practical training. The Inborn Errors of Immunity: Spot, Screen, Support course helps healthcare and lab professionals recognise suspected IEI and know when to refer. CME accreditation is being applied for. 👉 Places limited, secure yours: https://bit.ly/4yNNJmd

What if you could connect the dots between immune mechanisms, laboratory diagnostics, registry data, and genetic diagnosis, all in one day? The ESID Educational Day on 14 October is built for you: one full day with leading experts, from complement to genetic diagnosis. 👉 https://bit.ly/4xvIaI9

⏰ #ESID2026 is getting closer, and so is your €100 savings deadline. Join the IEI community in Maastricht this October to navigate the evolving landscape of immunology and uncover new ways to improve patients' lives. Savings end next week so secure your spot today: ➡️ https://bit.ly/4hf8UHC

Coming to #ESID2026? Add an extra afternoon of learning! Join the EuroFlow Pre-ESID Flow Cytometry Workshop, 13 October in Maastricht — hands-on training with standardised, ISO15189-compatible EuroFlow antibody panels for IEI-PID diagnosis. 👉 Full programme and registration: https://bit.ly/4hdoCmD

🤝 ESID 2026 has officially been assessed as Compliant by Ethical MedTech. For sponsors and exhibitors, this means one less hurdle in your internal approval process, confirmed across venue, scientific programme, hospitality, and communications. 👉 https://bit.ly/4A6HIST #ESID2026 #EthicalMedTech