1. Department of Pathogenic Biology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China.
2. Yunnan Cancer Hospital and the Third Affiliated Hospital of Kunming Medical University and Yunnan Cancer Center, Kunming, China.
3. Ganzhou Center for Disease Control and Prevention, Ganzhou, China.
4. Yunnan Center for Disease Control and Prevention, Kunming, China.
5. Department of Zoology, School of Life Sciences, Yan'an University, Yan'an, China.