A(H7N9) and the Secretive Chinese
Emerging Infectious Diseases has published (ahead of print) an article entitled Geographic Co-distribution of Influenza Virus Subtypes H7N9 and H5N1 in Humans, China by Chinese researchers comparing the geospatial epidemiologic characteristics of A(H5N1) and A(H7N9) in China. [1] The authors compare the geographic distribution of cases for A(H5N1) and A(H7N9) throughout China at the township level and determine . . . that the high-risk areas for human infection with subtype H7N9 and H5N1 viruses are co-distributed in an area bordering the provinces of Anhui and Zhejiang . . . The township is a level 4 administrative division in China. Within China, level 1 administrative divisions are provinces, province-level municipalities, autonomous region, and special administrative regions. Level 2 are prefecture-level divisions, and county-level divisions are level 3. Although the analysis was conducted on township-level divisions the authors present the conclusion by provinces. G...