In recent weeks, green signs have appeared in the shopping centre in the Chinese capital’s financial district. The circular design showed a health worker in full PPE, holding a giant syringe and a medieval knight-style shield, and text declaring the vaccination rate of workers in the area was more than 80%. Other buildings with rates of 40-80% were marked with a blue sign, while a rate below 40% was signposted red.
The colour-coded signs roughly align with the digital health codes for individuals, which became a ubiquitous element of China’s Covid management last year, and allowed people to travel outside quarantined buildings and zones if they had a green code on their phone app.