It doesn't mean that users have actually been to these high-risk areas, but other cities that users arrive or pass within 14 days will also be marked with asterisks, and the green travel itinerary code with asterisks will basically not affect travel.
Ankang code is Anhui health code, and the names of health codes are different in different provinces and cities. For example, it is called Health Bao in Beijing, Shen Sui code in Shanghai, Su Kang code in Jiangsu, and electronic health card in Shandong. There are health codes with different names but the same functions all over the country, but in Taiwan Province Province of China, there is no health code, and it is registered through a real joint system.