Subject: For information: ERVISS publication schedule during the end of year holidays
From: "ECDC respiratory viruses" <[email-masked]>
Cc: "ECDC Info" <[email-masked]>
Date: Thu, 4 Dec 2025 15:28:01 +0200

Tähelepanu! Tegemist on väljastpoolt asutust saabunud kirjaga. Tundmatu 
saatja korral palume linke ja faile mitte avada.

To:  National Focal Points for Viral Respiratory Diseases, Operational 
Contact Points (Epi, Micro,TESSy) for( Influenza, Covid-19, SARI) for 
ERVI-Net
Observer National Focal Points for Viral Respiratory Diseases (Enlargement 
Countries)
Contact Points for Operations (Epi, Micro, Tessy) for ( Influenza, Covid-19, 
SARI) for ERVI –Net (Enlargement Countries)

Cc:  National Coordinators, National Correspondents (Enlargement Countries)

Dear colleagues

We wanted to share with you the following occasions in December/January 
where the publication of ERVISS will deviate from the usual schedule due to 
office closures at ECDC and/or WHO/Euro.

Latest reporting week in data

Usual publication date

Revised publication date / notes

2025-W51

26 December 2025

No ERVISS publication and no onward data submission to WHO HQ that week

2025-W52

2 January 2025

Monday 5 January 2025

Data submission deadlines to TESSy remain the same (Wednesdays 23:59). 
Please note that the submission for week 2025-W52 falls on 31 January. We 
acknowledge that reporting may be delayed during this period; however, we 
still plan to publish ERVISS and will include a note in the summary to 
highlight the limited or/and delayed availability of data over the holiday 
period.

Thank you for your continued data submission and contribution to regional 
respiratory virus surveillance!

Best wishes

WHO/Europe and ECDC Respiratory Virus Teams

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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