VisualPandemicTheMap is a web-based (browser-based) application to display information about the spread, and impact, of coronavirus in a visual, and time-based way. You can watch the spread of cases, or deaths, over time, across counties in the United States. You can choose from a variety of views on the data; such as total deaths, cases/100K, deaths in the previous week, etc. In addition, you can compare current data to previous data; such as comparing cases/100K in one week to a previous week, either the immediately preceding week or a week several weeks before. Values can be displayed as counts or the percent change from the older time period.

The color of individual counties is used to indicate the value, and you can adjust the color range to distinguish the range of values visually. You can also get detailed numbers for counties by clicking on them or floating the cursor over the county.

I plan to add more data over the next weeks including deaths/cases by county, and positivity rates by state.

Please note this is a BETA version. It is still being developed and tested. Please send feedback, especially any incorrect, questionable, or confusing behavior, and also suggestions to

Ed-AT-VisualPandemicTheMap.org

Thank you, and I hope VisualPandemicTheMap is useful to you,
Ed

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Select a data set to use

Number of days per step (1-150):

How much data to show
The following link can be bookmarked or shared. It refers to the current configuration and specific date shown on the map. THE LINK - for the date shown on the map You can also touch/click on it and bookmark or share the new page which opens.

The following link can be bookmarked or shared. It refers to the current configuration, but NOT the date shown on the map. If you used '28 days', it will show the most recent 28 days from the day you run it. This is useful if you setup a view that shows the change in the last week and you want to use it in the future on the (then current) last week. A DIFFERENT LINK - for the current view with future data You can also touch/click on it and bookmark or share the new page which opens.

- Color Range -

zoom in/out on the selected county

Show data as

Enter a descriptive name for this view, or use the generated name.

(range) Use the number of events that occurred in the previous. day(s).
0-150 is valid
1-150 = use event count in specified range
0 use cumulative total to date, not a range.
1 = events that one current day
7 = events the preceding week
(interval) Compare to the same number of days starting. day(s) ago
0-150 is valid
1 = yesterday
7 = a week ago

(start day) Set in "map controls" just below the map. If you want a specific day other than "all", "28 days", or "most recent", use the "back", "forward", and "Number of days per step" to select the exact day.

(step) The number of days between map updates can be changed below the 'pause' button, under the map.

Diagram showing parameters controlling what data is displayed. A, B, and D are described to the left.

Only show counties with a population over
This can be useful with percents and /100K, because 1 or 2 people can create misleading results in low populations. Unfortunately, it can also mask interesting events in low population counties.

Only show counties with a previous count over
When displaying percent change from a previous period, this excludes counties with a previous value below the threshold. This can be useful, because if the previous count was very low, 1 or 2 people, it can create misleading results. (If the previous count was 2, and the new count is 4, that's a 200% increase. Whether that is significant depends on the context, your point of view, and what you are looking for.) Unfortunately, it can also mask interesting events.

These two values can also be negative, in which case only counties LESS THAN OR EQUAL TO the absolute value of the threshold will be shown. This means -10000 in the first box would result in only showing information for counties with populations less than or equal to 10000.

Credit and thanks to
	USA Facts https://usafacts.org/visualizations/coronavirus-covid-19-spread-map/ for ongoing updates on deaths and confirmed/known cases by county Eric Celeste https://eric.clst.org/tech/usgeojson/ for the JSON files of US counties and states Schroeder, Jonathan P - University of Minnesota https://conservancy.umn.edu/handle/11299/181605 for a US county population csv file including GEOID10 built on US Census Bureau data United States Census Bureau https://www.census.gov for population information Stack Overflow https://stackoverflow.com for helping me learn enough javascript to do this Chris Lusto and all the people at Desmos https://www.desmos.com for inspiring me to see what can be done with a web app

Privacy Policy
	I neither ask for, nor collect, your personal information. If you choose to email me at the address below, you will be giving me your email address by your choice. I will not sell, giveaway, or otherwise distribute your address. I will only use it to reply to your email. My web hosting service (www.ionos.com) collects some information on accesses to this website, and presents it to me fully anonymized, basically as the number of visitors per time period and such. For more details on what they collect, and how they process it, I would start with the following links. https://www.ionos.com/terms-gtc/terms-privacy/ https://www.ionos.com/terms-gtc/general-terms-and-conditions Twitter may collect data from the Twitter feed and "follow" button on this page. I have attempted to suppress their data collection, but have no way to verify it. You can also control Twitter data collection through your Twitter account, if you have one....

Terms of service
	While I have done my best to make coherent information available, I can claim neither responsibility, nor credit, for the sources of this information. I am merely trying to present it in ways that allow people to gain more understanding about the spread of the virus in the United States. This software and its results are offered AS IS with ZERO WARRANTY. If you find something wrong, confusing, misleading, whatever, please contact me and I will be happy to help or try to fix it. Permission is given to use unaltered screen shots, and video, of the map, for any journalism, or educational purpose, as long as reference is made to this website (the text in the upper left corner of the map is sufficient).

Contact
	I can be reached at Ed-AT-VisualPandemicTheMap.org

Thanks, and I hope VisualPandemicTheMap is helpful,
Ed Barth