Go here to see all the superspreading events in the database on a world map. Zoom in and click on a bubble to find more information about an event.

Because we used an imprecise automated method to find GPS coordinates for most of the ~1100 events in the US, the location on the map may not always be accurate (for example, if an event happened in Vernon, CT, the map may place it in Vernon, VT). Please report any errors you spot to

Animated Timeline

Go here to see an animated timeline that shows the superspreading events as they occurred in time. You can play and pause the animation, and click on a bubble to find more information about an event. 
You can also slow down or speed up the animation by changing the value in the speed control:
Please note that for most of the large superspreading events in the US as well as in some other countries the index dates in the database are placeholders (in the database these cells are marked light red in the Index Date column).

The focus of the database is on the features of the settings in which superspreading events took place, and on the general period in which they occurred, specifically whether they occurred in flu season or not. Finding the exact dates for more than 900 superspreading events would require a disproportionate amount of time. What this does mean is that no conclusions about the spread of the virus in the US and those countries should be drawn from the timeline.

Also note that many superspreading events in the database occurred over an extended period of time rather than on one specific day. Mardi Gras festivities, for example, typically are a weeks-long event, and outbreaks in prisons, nursing homes and meat processing plants also take place over an extended period of time.