It's 65438+20221October 22nd. Why is Dandong still doing nucleic acid testing?

I want to ask why Dandong is still doing nucleic acid testing on October 22nd, 2022/KLOC-0? According to the relevant information, the nucleic acid test was conducted in Dandong on June 22nd, 2022, because it was found that the mixed tube test result of 1 was abnormal. On June 22, 2022, the epidemic prevention and control headquarters in COVID-19, Dandong issued a circular. On the evening of June 26, 2022, 1. In order to resolutely and effectively block the spread of the epidemic and effectively protect people's life safety and health, the municipal epidemic prevention and control headquarters decided to carry out high-quality nucleic acid testing for all employees in the region. From October 22nd, 65438/KLOC-0 to October 24th, 65438/KLOC-0, the whole process of regional nucleic acid detection was continuously carried out in three districts of the city (including cooperation zone and high-tech zone). Residents in the jurisdiction should carry out nucleic acid detection in an orderly manner according to the unified deployment of epidemic prevention and control headquarters in each district and the organizational arrangements of streets (towns) and communities (villages). Therefore, on June 22, 2022, 10, Dandong also conducted nucleic acid testing because of the abnormal mixed tube test results of 1 tube.