The immunity of public health workers: observation from two waves SARS-CoV-2 Omicron variant endemic in Guangdong province, China

The immunity of public health workers: observation from two waves SARS-CoV-2 Omicron variant endemic in Guangdong province, ChinaHuan Zhang1#, Lina Yi1#, Huifang Lin1#, Lirong Zou1, Pingping Zhou1, Chumin Liang1, Lilian Zeng1, Xue Zhuang1, Zhe Liu1, Jing Lu1, Jianfeng He1, Baisheng Li1*, Jiufeng Sun1,2,3,4,5*，Runyu Yuan1*.1Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.