A laboratory technician performs 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.
China CDC is responsible for influenza surveillance in 1.3 billion people. Thanks in part to a mutually beneficial collaboration with CDC’s Influenza Division over the past two decades, China’s National Influenza Center (CNIC) in Beijing was designated by the WHO as the fifth WHO Collaborating Center for Reference and Research on Influenza in humans in October 2010. With this distinction, China joined Australia, Japan, United Kingdom, and the U. S. CDC in playing a pivotal role in global influenza surveillance.
For more on CDC’s international influenza-related activities, please see the link below.