1. National Avian Influenza Para‐Reference Laboratory College of Veterinary Medicine South China Agricultural University Guangzhou China
2. Research and development center Guangdong Huasheng Biotechnology Co., Ltd Guangzhou China
3. Institute of Poultry Management and Diseases Yunnan Animal Science and Veterinary Institute Kunming Yunnan China
4. Experimental Animal Center South China Agricultural University Guangzhou China
5. Key Laboratory of Zoonosis Key Laboratory of Animal Vaccine Development Ministry of Agriculture and Rural Affairs Guangzhou China
6. Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou China
7. Key Laboratory of Zoonoses Prevention and Control of Guangdong Province Guangzhou China