Cross-border travellers entering Zhuhai must present health declaration via new system from 19 January.
Guangdong Health Code
First test must be done today or tomorrow, second on 1 December, and third on 3 December; only infants and toddlers aged under three are exempt.
Mainland Chinese man charged nine travellers around RMB 400 each last summer; Health Bureau insists checking system not vulnerable.
Gangsters, who are believed to have been operating for some time, lie in wait for possible victims, and then provide forged certification for MOP 800.
