ID#: 20913
Caption: Here, a laboratory technician was performing hemagglutination inhibition (HI) testing, in China, during the country's 2014-2015 flu season. Scientists use the HI assay to antigenically characterize circulating seasonal influenza viruses.
High Resolution: Click here for hi-resolution image (28.54 MB)
Content Providers(s): CDC/ Emily Cramer
Creation Date: 2015
Photo Credit:
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.