no dal som rapid googling a tu mas expertizu:

Je nieco ako USISS Mandatory scheme, ktora sa zaklada na admissions of confirmed influenza. Tato statistika vykazuje tie male cisla: napr. od week 40 2018 do week 15 2019 spocitali 312 umrti.

Potom je nieco ako FLuMOMO model alias Influenza attributed deaths (The FluMOMO model is an extension of the EuroMOMO algorithm which aims to estimate the excess number of deaths associated with influenza activity, adjusting for extreme temperature) a tam su tie cisla velke - napr. 28 tisic v sezone 2014/2015.)

je to cele spisane tu:
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/839350/Surveillance_of_influenza_and_other_respiratory_viruses_in_the_UK_2018_to_2019-FINAL.pdf