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Your search included: COVID-19
HHS Combat Covid
Learn more about clinical studies related to COVID-19:
7155 Studies found for: Respiratory Tract | COVID-19

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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 7,155
Africa [map] 447
Central America [map] 57
East Asia [map] 482
Japan 58 [studies]
Europe [map] 2,516
Middle East [map] 613
North America 1,926
Canada [map] 260 [studies]
Mexico 194 [studies]
United States [map] 1,572 [studies]
North Asia [map] 197
Pacifica [map] 71
South America [map] 483
South Asia [map] 245
Southeast Asia [map] 208

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.