How many days will Kaifeng's hygiene code turn red when it comes back from Zhengzhou?

It will take at least 14 days. Red team is one of the colors in the health code system. There are three health codes: green code, yellow code and red team, among which red team has the highest risk level. According to the relevant provisions of the epidemic situation, the health codes of the confirmed cases or asymptomatic infected persons, suspected cases, close contacts, sub-close contacts, isolated personnel and key personnel for nucleic acid detection in COVID-19 in the prevention and control area will be given to red team.