COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC:

Get the latest research information from NIH: Menu
Open or close the search fields display
93260 Studies found for: subjects

A similar map is available for all studies in

Click on the map below to show a more detailed map (when available) or search for studies (when map not available).

Map Legend
Region Name Number of Studies
World 93,260
Africa [map] 1,917
Central America [map] 1,175
East Asia [map] 10,618
Japan 2,382 [studies]
Europe [map] 23,764
Middle East [map] 3,476
North America 50,461
Canada [map] 6,727 [studies]
Mexico 1,431 [studies]
United States [map] 47,240 [studies]
North Asia [map] 2,569
Pacifica [map] 3,392
South America [map] 3,156
South Asia [map] 1,653
Southeast Asia [map] 2,273

Click on a [map] link to show a map of that region.

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

Studies with no locations are not included in the counts or on the map.

Studies with multiple locations are included in each region containing locations.