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Matthijs Welkers

@flahless.bsky.social
149 followers 260 following 6 posts

Clinical microbiologist/virologist at AmsterdamUMC, The Netherlands. Focus on viral evolution & sequencing. Flahless like RNA polymerase. Views are my own.

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Matthijs Welkers @flahless.bsky.social · 24/01/2026
Zou ook fijn zijn als we in de ziekenhuissetting een kostprijsvergoeding zouden krijgen om de virussen van opgenomen flu+ patiënten te typeren. Nu doen we dat alleen buiten de seizoenspiek om en tijdens de seizoenspiek gaan er maar 5 random samples per week naar de NIC. Dat kan beter…
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Reposted by Matthijs Welkers
Eurosurveillance journal @eurosurveillance.org · 23/01/2026
In our new issue, @flahless.bsky.social and colleagues describe clinical presentation, transmission dynamics, #PublicHealth response & phylogenetic analysis of the first local transmission of #MPXV clade Ib virus in the Netherlands 🗞️ bit.ly/EUS313 #EpiSky #IDSky #MedSky #MicroSky 🛟🧪 #mpox #AMR
Eurosurveillance table of content issue 3 in 2026

Editorial
World Leprosy Day 2026: reflections on leprosy surveillance in Europe

Rapid communication
First detection and autochthonous transmission of monkeypox virus clade Ib in the Netherlands, October to November, 2025

Outbreaks
First use of Trumenba (MenB-fHbp) vaccine to control a nursery outbreak of serogroup B invasive meningococcal disease involving children previously immunised with Bexsero (4CMenB), England, November 2023

Surveillance
Epidemiology of human salmonellosis in Czechia ─ a country with the highest European notification rate, 2012 to 2023

Perspective
Integrating AMR surveillance into wastewater monitoring systems in 2025: a position on the implementation of Article 17 of the Urban Wastewater Treatment Directive (UWWTD)
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Matthijs Welkers @flahless.bsky.social · 09/05/2025
Hi Erik, could I be added to the feed? My orcid is 0000-0002-2982-0278. Thanks!
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Matthijs Welkers @flahless.bsky.social · 09/05/2025
The approach was inspired by previous publications for Ebola virus by Anders Fomgaard et al., but without manual addition of MagnaPure buffer to blood collection tubes. (pmc.ncbi.nlm.nih.gov/articles/PMC...).
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Matthijs Welkers @flahless.bsky.social · 09/05/2025
Why: Even with low VHF suspicion, BSL-3 + full PPE is standard for handling whole blood to perform blood smears. Lysing at blood collection cuts exposure risk to staff and allows LAMP dx at BSL-2. Practical, scalable, and deployable—no smears, no suits, no delay.
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Matthijs Welkers @flahless.bsky.social · 09/05/2025
When: in critically ill returning travelers where malaria is likely, but VHF can't be completely excluded. Just to be clear: not intended/validated for use in confirmed or high-probability VHF cases!
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Matthijs Welkers @flahless.bsky.social · 09/05/2025
🧪New paper out! Together with parasitologists from AmsterdamUMC and Rijnstate hospital we tested a faster & safer way to diagnose malaria when VHFs can't be completely ruled out using Zymo tubes + LAMP -> no more need for full BSL-3 gear. Read more: malariajournal.biomedcentral.com/articles/10....
malariajournal.biomedcentral.com
Enhancing safety of rapid and accurate malaria diagnosis in patients at risk for viral haemorrhagic fever - Malaria Journal
Background Malaria and viral haemorrhagic fever (VHF) have overlapping symptomatology, creating clinical and diagnostic challenges within, and in travellers returning from, co-endemic areas. Rapid and...
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