Covid-19 virus day by day chart? [closed]

Have a look at the Johns Hopkins Coronavirus dashboard

You can access their database directly if you wish to do your own modelling on the projection of the virus.

There are also daily situation reports documenting progress of effects of the disease in relevant countries.

The official WHO website is the best so far, it only shows clinically proven cases. However, it's a bit late sometimes.

https://www.who.int/redirect-pages/page/novel-coronavirus-(covid-19)-situation-dashboard

I kinda like Mackuba.eu. It uses the data of the Johns Hopkins CSSE. And it creates nice graphs for every country.

Worldometer is a good source for

• list of countries summary
  • with individual links to (at present) 9 countries
    • daily numbers and graphic results for different combinations
      • newly infected, recovered, deaths and comparisons
• Daily list of new reports
  • with a link to the original source

A Coronavirus-Monitor (from the Berlin Newspaper Morgenpost)

• based on Johns Hopkins University CSSE data
• showing Map results for regional areas (where available)

Do you know any website(s) where I could check how many COVID-19 cases Italy had 10 days ago?

Goto Germany, Italy or the United States, scroll down to the graphs:

• Total Coronavirus Cases in...
• Daily New Cases in...
• Active Cases in...
• Total Coronavirus Deaths in...
• Daily New Deaths in...
• Newly Infected vs. Newly Recovered in...
• Outcome of Cases (Recovery or Death) in...

Place your finger/mouse over the desired date:

• Feb 21 (when the outbreak in Italy started)

The main total Case Graphs page offers the same functionality.

Sources:

• Coronavirus Cases: Statistics and Charts - Worldometer
  • Case Graphs
  • Confirmed Cases and Deaths by Country, Territory, or Conveyance
  • Latest Updates
    • sorted by day (latest first) and continent
      • in great detail per country, with link to each source
    • Archive - February 2020 Coronavirus News Updates
  • Africa
    • Algeria
  • Asia
    • China
      • Hong Kong
    • Indonesia
    • Malaysia
    • Philippines
    • South Korea
  • Australia
    • Australia
  • Europe
    • Austria
    • Belgium
    • Denmark
    • France
    • Germany
    • Greece
    • Ireland
    • Italy
    • Netherlands
    • Norway
    • Poland
    • Portugal
    • Spain
    • Sweden
    • Switzerland
    • United Kingdom
  • Middle East
    • Iraq
    • Iran
    • Israel
    • Turkey
  • North America
    • Canada
    • United States
  • South America
    • Brasil
• Coronavirus Symptoms (COVID-19)
• Coronavirus: Interactive Map Germany, Europe and World with numbers (in German)
  • Coronavirus COVID-19 (2019-nCoV) - Johns Hopkins University

Just adding the official graph of Protezione Civile on the same platform as John Hopkins one: http://opendatadpc.maps.arcgis.com/apps/opsdashboard/index.html#/b0c68bce2cce478eaac82fe38d4138b1 Cases are broken down by region.

Data comes from official sources (Ministero della Salute). I recommend checking their official website too for official news (italian only).

I don’t know of a website publishing historic day-by-day data, but this one https://www.worldometers.info/coronavirus/#countries includes a detailed historic commentary on the figures so you could probably work out what you are looking for based on the data as at today and tracking back through the commentary to the date you’re interested in.

However, I agree with @Gerrit - it is impossible to draw any meaningful conclusions at all from such an exercise. There are too many variables eg population tested, date when testing began in Germany and on what basis etc.

I also like this blog post with realtime charts about the corona virus:

• https://blog.datawrapper.de/coronaviruscharts/#column-chart-Italy
• https://blog.datawrapper.de/coronaviruscharts/#column-chart-Germany

P.S.: I'm not affiliated with this company.

Computer science students build coronavirus tracking website TrackCorona - Live Map: https://www.trackcorona.live/map