Weekly laboratory detections of respiratory viruses by Czech region — from SZÚ/NRL weekly PDF reports, updated every week.
Season totals by region
Summary of laboratory tests for respiratory viruses by region for the running season (since calendar week 40/2025). Prague and Central Bohemia share virological laboratories and report jointly; the Zlín region has no virological laboratory of its own in the reports.
Laboratory tests by region — season 2025/26
Absolute counts per season: positive detections and samples tested. Regional differences mainly reflect laboratory capacity, not just disease occurrence.
Weekly course — regions with the highest detections
Positive detections by calendar week in the six regions with the highest totals. Data accrue every week, including over the summer.
Positive detections by week — season 2025/26
Absolute counts of positive laboratory tests per calendar week. Not adjusted for population or for the number of samples tested.
Where the data comes from
Every week the SZÚ website publishes a PDF with laboratory results by virological site. The pipeline downloads and parses them into a continuous time series — published PDFs never change retroactively, so a downloaded week is final. The extraction is validated against cumulative totals inside the PDFs.
Source: SZÚ — weekly ARI/influenza reports · laboratory tests (PCR/IF) · season 2025/26, since week 40/2025