Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...
2879 studies found for:    "Hepatitis, Viral, Human"
2879 studies found, shown on map.
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 2879  
Africa   [map]   84  
Central America   [map]   184  
East Asia   [map]   608  
Japan 72   [studies]
Europe   [map]   775  
Middle East   [map]   122  
North America 990  
Canada   [map]   261   [studies]
Mexico 38   [studies]
United States   [map]   892   [studies]
North Asia   [map]   92  
Pacifica   [map]   234  
South America   [map]   108  
South Asia   [map]   85  
Southeast Asia   [map]   127  

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.