search

outbreak-info / biothings_covid19

Biothings plugin for JHU CSSE COVID-19 cases
6 stars 5 forks source link

Verify weird U.K. data #11

Open flaneuse opened 4 years ago

flaneuse commented 4 years ago

U.K. data had a big downward shift in number of cumulative cases on 2 July (also 20 May). image

Confirm that this decrease is real, and not related to how JHU divides data into England, Wales, Scotland, and Northern Ireland and/or how the pre-processing script assigns data to the U.K. in the spatial join.

possibly related to outbreak-info/outbreak.info#128

juliamullen commented 4 years ago

Can a decrease in cumulative cases be "real"?

flaneuse commented 4 years ago

Yes @juliamullen; case counts can be corrected.

It's a sizable chunk of cases, though, so it merits verifying with the primary data source that the corrections were intentional. There's some weirdness that may happen from the UK being comprised of England, Wales, Scotland, and Northern Ireland. Want to make sure we're not missing a country or mis-classifying it.

flaneuse commented 4 years ago

See also France : image

and Spain image

gkarthik commented 4 years ago

Both Spain and France had revised estimates that showed a decrease in cumulative cases. However, important to note that JHU corrects their global time series but does not correct daily reports.

Relevant for Spain: https://github.com/CSSEGISandData/COVID-19/issues/2491 Relevant: https://github.com/CSSEGISandData/COVID-19/issues/2483#issuecomment-625145021