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Map shows likelihood of COVID-19 infection in various gathering sizes

Risk_Assessment_Tool
Posted at 12:26 PM, Oct 08, 2020
and last updated 2020-10-08 12:26:21-04

INDIANAPOLIS – An interactive map, created by professors at the Georgia Institute of Technology, shows the county-by-county risk level of attending an event with somebody infected with COVID-19.

Using the map, you can set the size of an event by number of attendees between 10 and 10,000. You can also change the ascertainment bias at 5 or 10. That bias assumes there are more cases than what’s been reported, either 5-to-1 or 10-to-1.

In counties with more widespread testing, the ascertainment bias will be lower.

For example, at an event with 100 people in Marion County with an ascertainment bias of 5, there is a 56% chance of at least one person being infected with COVID-19.

The dashboard uses data from The New York Times case count and Covidtracking.com dashboard.

The map was created by professor Joshua Weitz, in collaboration with the lab of Clio Andris, an assistant professor in the School of City and Regional Planning with a joint appointment in the School of Interactive Computing at Georgia Tech, and with researchers from the Applied Bioinformatics Laboratory.

Click here to explore the map for your county.