Why does Guiyang health code appear for no reason?

Guiyang health code will not appear three times a day for no reason, and will be prompted after big data screening and nucleic acid detection.

1. Since 0: 00 on June 23, 2022, Guizhou Health Code has added functions such as prompt pop-up window or need to check 3 times in 5 days. There is a warm reminder in the pop-up window of Guizhou Health Code or the logo of "3 tests in 5 days" on the home page, suggesting that there may be one of the following situations: recently, you may have been to or passed through a prefecture-level city with positive COVID-19 infection (including confirmed cases and asymptomatic infections). Recently, I spent some time in the same space-time grid with the patients diagnosed in COVID-19. I just returned to Guizhou from a land port city, and I didn't carry the negative certificate of nucleic acid test within 48 hours. After epidemiological investigation, it is necessary to carry out three inspections within five days.