Didn't you change the size when you came back from other provinces from scratch on the 22nd? Why did you change the code when you came back from 19?

According to the latest epidemic prevention and control requirements in Guangdong Province, people with "yellow code" need to carry out nucleic acid testing as soon as possible. But three things must be kept in mind:

1. Those who have not completed the nucleic acid test in high-risk cities and medium-risk cities where local transmission occurs will be given a "yellow code" and sent a short message to remind them that once the nucleic acid test is negative, it will turn into a "green code".

Second, the "code yellow" personnel should do personal protection and go to any nearby medical institution for testing as soon as possible. At present, the "yellow code" rapid detection area has been set up in general hospitals above the second level in the province. The specific list can be found in the "COVID-19 Testing Service" area of the official WeChat account of "Guangdong Health Platform".

Third, do a good job of personal protection: wear a mask and then go to the nucleic acid testing point, paying attention to keeping a "one meter" distance from others. Travel code is the code of communication big data travel card, which is also equivalent to health code. China Institute of Information and Communication, together with China Telecom, China Mobile and China Unicom, used mobile phones to receive data, which was obtained through the location of the base station where the users' mobile phones were located, providing free inquiry service for the 654.38+06 billion mobile phone users nationwide. Mobile phone users can query all the city information they have been to before 654.38+04 days through this service.