An application of nowcasting methods: Cases of norovirus during the winter 2023/2024 in England
Fig 2
The backfilling of norovirus cases over the Winter 2023/2024 season.
Without looking at the final revised cases more recent trends appear to tail off due to reporting delays. (a) daily counts of cases. The solid colour lines show the “initial” count of cases uploaded by the end of the week, the dotted black line shows the final “revised” counts uploaded after the week’s end. (b) The count of cases reported by the end of each week denoted by “initial”, with the additional cases reported after the weeks end denoted by “revised”. The end date for each week was taken as a Sunday, to produce a nowcast of data from the previous week.