Figure 1From: Development and implementation of the quality control panel of RT-PCR and real-time RT-PCR for avian influenza A (H5N1) surveillance network in mainland China Infrastructure and information flow of Chinese avian surveillance scheme. Vir, virological specimens; CNIC, Chinese National influenza centre; Local CDC, local centre for disease control and prevention from China's Provinces, municipalities & Autonomous Regions; WHO, world health organization; WHO CC, WHO collaborating centre for reference and research of influenza.Back to article page