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I loved the ONS pilot reads of prevalence study that was, sadly and to the detriment of science, never continued.
(ons.gov.uk/peoplepopulationand…; figure from
x.com/jneill).
Owing to the RKI Grippeweb Plus data, we can now roughly compare influenza incidences to wastewater viral loads.
For the Grippeweb Plus data, see:
swiss.social/@dominiksteiger/1…
Dominik Steiger (@dominiksteiger@swiss.social)
Attached: 3 images #Covid #Influenza The RKI has published results from their GrippeWeb-Plus cohort for 2023-2025 (Epidemiologisches Bulletin 35, 2025; https://edoc.rki.de/bitstream/handle/176904/12925/EB-35-2025_10-25646-13390.pdf).Dominik Steiger (swiss.social)
Dominik Steiger
in reply to Dominik Steiger • • •This gives a rough way to calibrate wastewater viral load.
Comparing to German AMELAG ww data, we see pretty good proportionality.
Viral loads were slightly lower relative to Grippeweb Plus symptomatic incidences for the 2023-2024 IAV H1N1pdm09 epidemic as compared to the 2024-2025 IAV H1N1dpm09 + IBV double wave.