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Teema: For information: External quality assessment for molecular detection, subtyping and characterisation of potentially zoonotic type A influenza viruses, 2024
Kuupäev: 2025-09-12 14:37
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To: National Focal Points for Viral Respiratory Diseases, Operational
Contact Points (Epi, Micro) for influenza
Cc: National Coordinators
Dear Colleagues,
With this email we would like to inform you about the recently published
ECDC EQA report produced through AURORAE consortium: External quality
assessment for molecular detection, subtyping and characterisation of
potentially zoonotic type A influenza viruses, 2024
<https://www.ecdc.europa.eu/en/publications-data/external-quality-assessment-molecular-detection-subtyping-and-characterisation>
External quality assessment for molecular detection, subtyping and
characterisation of potentially zoonotic type A influenza viruses, 2024
This EQA was performed in the European Union/European Economic Area
(EU/EEA), Western Balkan countries and Türkiye.
𝗞𝗲𝘆 𝗳𝗶𝗻𝗱𝗶𝗻𝗴𝘀:
✅ All laboratories correctly detected influenza A viruses and identified the
H5 subtype.
✅ 20 out of 30 laboratories could detect H5N1 at very low concentrations
(8.11 genome copies/µl).
✅ Most laboratories demonstrated capacity in sequencing, but only some
achieved full subtype and clade assignments.
𝗚𝗮𝗽𝘀 𝗶𝗱𝗲𝗻𝘁𝗶𝗳𝗶𝗲𝗱:
⚠️ Limited sensitivity in some tests
⚠️ Incomplete H- and N-subtyping, especially for swine influenza viruses
⚠️ Need for broader sequencing capacity and improved reporting
⚠️ Training required in using bioinformatics tools for genetic data
interpretation
Best regards,
The ECDC Respiratory Viruses section
European Centre for Disease Prevention and Control (ECDC)
Gustav III:s boulevard 40, 169 73 Solna, Sweden
Phone +46 (0)8 58 60 10 00
www.ecdc.europa.eu
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