According to the latest news of epidemic prevention and control, you can go to Zhengzhou on March 20, 2022 during the epidemic. You only need to show the green health code, travel code and negative report of nucleic acid test within 48 hours, and there is no need for isolation.
People in middle and high risk areas need to be isolated for 14 days (during which 2 nucleic acid tests and 1 serum tests are conducted).
For those who arrive in Zhengzhou within 0/4 days before the horizontal modulation risk is medium and high, continue to implement the measures of "home medical observation until leaving the place/0/4 days after kloc, and carry out nucleic acid detection (serum antibody detection if necessary)".